Feb 012011
 

Hebden Bridge Chess Club members will be well acquainted with my passion for digging up chess curiosities from across the ‘interweb’. Recently I came across the perplexing puzzle below. It’s White to play and mate in 1.

White to play and mate in 1

Yes, in 1! Try putting that one through your computer and it will fry it’s chips before it finds the answer. If I told you that the solution is a VERY unusual move that is no longer strictly within the bounds of the rules of the game then that might help you a little bit. The solution will be revealed at the bottom of this post.

Anyway, the legend around this particular problem is shrouded in mystery. No-one knows who composed it, nor do they know when, but it is evident that this puzzle pre-dates the publication of FIDE’s official rules of the game (another little clue there).

As usual, I was not satisfied with this lack of provenance and so, having tried to cultivate a lead from the internet and failed, I turned to this blog’s old friend and oracle on chess history, the Duchess of Blunderboro, to see if she might be able to provide me with a clue. So, last week I sent her an instant message with the problem attached. Here is how our chat developed:

Intermezzo: Hi Duchess. Any idea who composed this problem?

Duchess: Oh yes! That one is one of Grand Fathers. It’s a funny story actually.

Intermezzo: Wow! Care to elaborate for me? How about a blog post?

Duchess: Certainly!

So, without further ado, I’ll hand over to the Duchess, who will explain all.

The Duchess of Blunderboro

“I first encountered this position in June 1937 and I was 15 years old. It was a warm summer’s day. I had taken my chess set out to the conservatory and was thumbing through one of my Grandfathers old score books in a bid to convince my Father that I was taking my chess education seriously. I had idly played through several games without taking too much time to consider the ideas behind the moves when I reached the final stages of the game in which the position in question appeared. Noticing that the game lasted only a few moves more I paused for a moment to visualise them as I couldn’t be bothered to play them out over the board. As I did this a voice from just behind me said “There’s an amusing story behind that position”.

Jumping with the shock of the sudden interruption, I turned to see that Daddy had sneaked up behind me and was smiling at the recollection of some long distant memory. “It looks like a perfectly straightforward position to me. Black should really have resigned long ago” I observed a little put out that I was being spied upon.

“I’d have to agree with you,” said my Father as he moved round the table to sit down opposite me. “But how about if I told you that Granddad had missed a very unusual and extremely witty mate in one in this very position?”

A cursory glance at the board told me that there was no such mate in one. “Impossible!” I announced. There is no way for White to mate in one move, even by some such sneaky means as an under promotion.”

“Again, I agree with you,” my Father beamed back, “and so did Granddad. But when you’ve been told that there is a mate in one by non-other than the great Adolf Anderrsen, you have to take it seriously.”

“What? “ I spluttered. “Anderssen saw this game and found mate in one?”


The Cafe de la Regence


“Indeed he did,” confirmed my Father. “Your Granddad played this game in Paris at the Café de la Regence in 1878. It was a casual game against a fellow of no particular consequence but, as was his habit in those days, he recorded the score so that he could study the game at a later date. It just so happened that there was a big international tournament taking place in Paris at that time and consequently several of the world’s best were taking their leisure in the café which was renowned as a venue for chess playing. Anderssen, who was nearly 60 years old at that point and competing in what turned out to be his last tournament, happened to be one of small group kibitzing Granddad’s game right at it’s very end and had had a joke with him at it’s conclusion saying

Adolf Anderssen in later life

“Did you know that you missed a very amusing check mate in one a couple of moves before the end?”

Your Granddad had been dumbstruck as he well knew who Anderssen was but was totally convinced that no such mate existed so he didn’t know how to respond. Anderssen had quickly set up the crucial position on the board again and then said.

“The solution really is most unusual. In fact I’d say it would make a striking problem. Check mate in one move. Can you find it?”

Your Granddad told me that he, his opponent and the growing group of kibitzers stared in stunned silence for a couple of minutes trying to find the answer. After a while it became evident that they couldn’t do it so, quietly, Anderssen reached across the board and pushed the White pawn to b8. He then picked it up and replaced with… a black knight!”

As he said these words my Father replicated the great man’s actions, under promoting the pawn to a black knight. He chuckled merrily as he did so. I starred open mouthed in amazement for it was, undeniably, checkmate.

1. b8=N (black) and check mate!
“But, surely that’s illegal,” I stammered.



“Yet again, I must agree with you,” laughed my Father. “But in fact, at the time this game was played there was no specific rule stating that a pawn had to be promoted to a piece of the same colour!”

So, this then is the story behind the position which has since become known a chess problem of unknown origin. For myself I like to think that the origin was Anderssen himself for he was a renowned composer to chess problems and had said himself that the position would have made a striking puzzle. Being as he died not long after the Paris tournament I often imagine that this position might have been found amongst his documents after he died unpublished and uncredited. This is fanciful of me perhaps, but it’s plausible.”

Thanks, as ever, go to the Duchess for bringing us this ‘exclusive’ story. As a final note on this, the hardest of chess problems, I should add that FIDE’s official rules require that a pawn on the eighth rank must promote to a piece of the same colour



  One Response to “The Hardest chess problem in the world?”

  1. Good Article. Very interesting solution!

Leave a Reply to Nick Cancel reply

You may use these HTML tags and attributes: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <s> <strike> <strong>

(required)

(required)

This site uses Akismet to reduce spam. Learn how your comment data is processed.

https://drive.google.com/drive/folders/10fyz_Ommb3sylQtV-Q40H_L2HIHNmfrC?usp=sharing https://drive.google.com/file/d/1tfPECuBHxS-Akfyq4CiWbFvN2acW14ca/view?usp=sharing https://docs.google.com/document/d/1_CMXIsyLN-kQM11EpLsgzi82VrA_30NWeuSVTwfVDps https://docs.google.com/spreadsheets/d/1VRYJ2AHc_3PS6Mg6TvB9mGvy8-dxkY9g00aNt0o5A68 https://docs.google.com/forms/d/e/1FAIpQLSd9x6hKUSJsjxiL3dPuM0aMDJx_slvbgOjBahnYI_s6OhJwIA/viewform?usp=sf_link https://calendar.google.com/calendar/event?eid=M2pkZjJvc29rbGFvcHJuaXVwdWY2N3UzNTEgcmVldGFjemFybmVja2k2OUBt https://www.google.com/maps/d/edit?mid=1dvg-BytNAiaEh8qEg9eQUaKXFDhANPQD&ll=31.969136951982602%2C-92.41699249999999&z=4 https://www.youtube.com/playlist?list=PLn1aYhxGqMsC-EefeJZRnOwvVJHzF_o08 https://www.blogger.com/profile/09332662285503823938 https://replicabags1106.blogspot.com/2020/10/replica-bags-gucci-gsvju416.html https://sites.google.com/site/replicabags1106/ https://docs.google.com/spreadsheets/d/14La8_Qz6ohnqPZZ1wLPXGlDYKMqsDOA7s_JV1VEwfCI https://drive.google.com/drive/folders/10zLHiWFJZMEo-LTynKJT7s1FNZRTlRKZ?usp=sharing https://drive.google.com/file/d/1b2ONE2RwZO7OdHMXFCIAEJOZ2jWAbe2i/view?usp=sharing https://docs.google.com/document/d/1GFzCFw1p5_vlGk4N1yAzmlQ4NH6NuMz2uv2IpdYdhCk https://docs.google.com/spreadsheets/d/1c2JkLFokQp7LWdFFHrzc_QMtEBFTDRv60C_--H4X1KU https://docs.google.com/forms/d/e/1FAIpQLSdQ_8ld7hBedCvLzizsOEFch7CDZNQLadz2zUac3bNIXLnunA/viewform?usp=sf_link https://www.google.com/maps/d/edit?mid=16JGCye6bTH1HLFMWGIM28uFca9-V86sm&ll=18.364782016499376%2C-92.41699249999999&z=3 https://www.youtube.com/playlist?list=PLLdGdeVw-7H5rFT9JUKs19kNZbJLyfX1V https://www.blogger.com/profile/12049914127199115382 https://replicabags1109.blogspot.com https://sites.google.com/site/replicabags1109/ https://docs.google.com/spreadsheets/d/1W9shs5iRgD64SHES6euRGAo4vlLnwFeZ6B78aGcvNiY https://drive.google.com/drive/folders/1YW49-6vdEP6wgP4sjBtrG38-lQ3ZkPGC?usp=sharing https://drive.google.com/file/d/1mtA_d77h81vJF_bvBqR2J8pJwxc-pNgy/view?usp=sharing https://docs.google.com/document/d/1RYOV6TBV4DuyM9dt5oh9dlPtJabhBcZTQZ6HinWCFmE https://docs.google.com/spreadsheets/d/1Jc5qQh6pEvpFN2dQeoYo2d6EqrMfor6e-bqlJBjjaMQ https://docs.google.com/forms/d/e/1FAIpQLSdbgnPRxtt9SoNiHeV5Zm_rmwDyppW-ciXEBt2g50mMadiB9w/viewform?usp=sf_link https://www.google.com/maps/d/edit?mid=171_fjKdtuvBB1yxg4Y_zvLVHUIAZmDhg&ll=18.364782016499376%2C-92.41699249999999&z=3 https://www.youtube.com/playlist?list=PLYVCgtAQZjKW5mlBYQANZ7hiA7IhMUhiH https://www.blogger.com/profile/13889772123475017681 https://replicabags1110.blogspot.com https://sites.google.com/site/replicabags11105837/ https://docs.google.com/spreadsheets/d/1CNuJGFdGPOwDnGmz2VPQQ8Kp6gH51SfmwKkpzad7udo https://drive.google.com/file/d/1Ldc-1qpIejvuLphkbeYTf1c1C3LAfWNy/view?usp=sharing https://docs.google.com/document/d/1wdP-HkrWUjpeJEHtqwz9h5K1RIgXIJ8iiY395_pHB8U https://docs.google.com/spreadsheets/d/1Gt6E4HQJ-ijBwPevMuJxCMP45OLSuxBYWiUOBAcZYHA https://docs.google.com/forms/d/e/1FAIpQLScwaZNedyXZ_vdmF989vzqFRJ4aCxPJFHA-eEH8Y0IErNijqw/viewform?usp=sf_link https://calendar.google.com/calendar/event?eid=MWQ5cGFsOWphdjVrOTVsbjVoajJra2VhZHEgZXJpY2tzcGV5ZXJAbQ https://www.google.com/maps/d/edit?mid=1xm4haE_LZcmcMxVqmrcHkT4RwaMESGVO&ll=18.364782016499376%2C-92.41699249999999&z=3 https://www.youtube.com/playlist?list=PL4NycyWsdmLzzfUITO4JdnQURbHPiLLqv https://www.blogger.com/profile/16063211964353659298 https://replicabags1111.blogspot.com https://sites.google.com/site/replicabags1111/ https://docs.google.com/spreadsheets/d/1vwoiyM0eUDu5T5fTToOTWrRKivEkn-3XyDIsGKar0fc https://drive.google.com/drive/folders/1wrlBQWzvYEv8TOXtZiq7gbDrBMbZaCfc?usp=sharing https://docs.google.com/document/d/10x3XDXA_NMILxq3TxI3OlwuCYSsoUKAETj3V66EtgmI https://docs.google.com/spreadsheets/d/1i_w8PEXGDN7y8_PcDc-9IJ8w1ISFOtfKpBunLUKXwuc https://docs.google.com/forms/d/e/1FAIpQLSclsx_9QpT5Q0_ohLVu9hLgdg5lnyjrqECNXLhehSkqEmRYQQ/viewform?usp=sf_link https://calendar.google.com/calendar/event?eid=MGdqcml2NmdnaGxjbWJlZnFrbHQ3b2htYzMgY2FpbnN1cmlhbm8xNUBt https://www.google.com/maps/d/edit?mid=1zasxn5BDNY5khD8r0Vb8ACXjAWB4C7T6&ll=18.364782016499376%2C-92.41699249999999&z=3 https://www.youtube.com/playlist?list=PLnE5RqNirhB3Rvxxy36y2xRljZ1g-5-ch https://www.blogger.com/profile/05201760526343955900 https://replicabags1114.blogspot.com https://sites.google.com/site/replicabags1114/ https://docs.google.com/spreadsheets/d/1XckKwigonqYR1Vz6Hh729Aws7b061b28cUv3KQmdiww https://drive.google.com/drive/folders/1HnBMP73bBQPoO6raWsDocoElrlwu-CHO?usp=sharing https://drive.google.com/file/d/1Rr82YHb2zPG7KNjI4BDi6feEqqKpedIo/view?usp=sharing https://docs.google.com/document/d/15rnqqptAjW9_Uv-UEofR0JKqVwYPbWcZORE2SOGJAeE https://docs.google.com/spreadsheets/d/10yFU95LpDhMpcGtGYGatbJvRhUSe8fJufOgDh2D3xxI https://docs.google.com/forms/d/e/1FAIpQLSdRC-XM0IG8rH2TEaDWJhXO-Vuk5_umDpGEWwORSl8SwaEKPQ/viewform?usp=sf_link https://www.google.com/maps/d/edit?mid=1PG8wi7OTdYLZG7phY7KmZipnGCI5q4-u&ll=18.364782016499376%2C-92.41699249999999&z=3 https://www.youtube.com/playlist?list=PLokUCtar2lQ0IlwvZ-KkY3k4qCnJmsgoB https://www.blogger.com/profile/07139280671035222240 https://replicabags1117.blogspot.com https://sites.google.com/site/replicabags1117/ https://docs.google.com/spreadsheets/d/13q21Xl-Nh28E6fu54Pt9UdGh5ycQXlqnnHYqz7BNdtM https://drive.google.com/drive/folders/1O7y_9lcGTVkcJ4VYaQSU9l8al64yY0dy?usp=sharing https://drive.google.com/file/d/1K6xR8aXvFzORi6jf_URwqns9dYZxQsgt/view?usp=sharing https://docs.google.com/document/d/1brpbP4PqNcJ3rkHil0gNJt-JWLgviMrLa1QbukZbtns https://docs.google.com/spreadsheets/d/1qZjI-TV9Q3_gGuF3wj5kwbfNbYl9F6qEFwCMc8kQdX8 https://docs.google.com/forms/d/e/1FAIpQLScOi1PWy3GcjqfUID5hjfBbMd6V5yciPs5xftsLdCn6-qhZuw/viewform?usp=sf_link https://calendar.google.com/calendar/event?eid=MWd1cWI1bms3bDM1YnRkbWVtdjV1NGI1bzEgbWFyY2VsbGluYWZhYmVydEBt https://www.google.com/maps/d/edit?mid=16DfCT_iHWsCDNA33MSeQZp3ct3dLe4xf&ll=18.364782016499376%2C-92.41699249999999&z=3 https://www.youtube.com/playlist?list=PLG_aIObnWCcH8nvt9FZr8NHsvdLazXwV- https://www.blogger.com/profile/10009333739592486596 https://replicabags1118.blogspot.com https://sites.google.com/site/replicabags1118/ https://docs.google.com/spreadsheets/d/1OpsTiAOL2wSDdFcXHOCuaZn75bjauubOytZTG93UBeo https://drive.google.com/drive/folders/1tp-V5EomvccoFY2yjNS4NHLNUq1PinZN?usp=sharing https://drive.google.com/file/d/1zYBDCTvXW7sshuAnh7jZx87SHGpbR2Ky/view?usp=sharing https://docs.google.com/document/d/149z-zqZ-Id5_up9Nd2G7myUiwAqP7h0Z_ulXzyVn8eQ https://docs.google.com/spreadsheets/d/1iTbE6cLk9QrLBCK7VDJE2ZTECb_lNUYygdGZhqhw9Ho https://docs.google.com/forms/d/e/1FAIpQLSe45GNhZvB0XjnfWmksfSRxRbXVl3LVeKp63HcXjFuYIUcDrA/viewform?usp=sf_link https://calendar.google.com/calendar/event?eid=MmJwMzkzY2M1cTBtYWMwYzdkN2JkY2I5ZWggYW5ubWFyaWFtb3JlbGxAbQ https://www.google.com/maps/d/edit?mid=1xYJrFuzk5LZvw7dIuNrnOhsRixTS2PB3&ll=18.364782016499376%2C-92.41699249999999&z=3 https://www.youtube.com/playlist?list=PLkt9zsPYvJIeIyyYwCCEIHBel8vRvTNpk https://www.blogger.com/profile/15291386171561460603 https://replicabags1119.blogspot.com https://sites.google.com/site/replicabags1119/ https://docs.google.com/spreadsheets/d/1ciRlbj5j9UbgPvnkIxtUfHWWcv5TPFYN4O1394hYhGE https://drive.google.com/drive/folders/1MSgGMkBncf_fr66cO9GbjTsqh2-505R7?usp=sharing https://drive.google.com/file/d/1uWMDKhQ7C8ZkdkP2V9HuGd87myrm1dsc/view?usp=sharing https://docs.google.com/document/d/1BYvo5RRUR9EDt0gc1Q_oyV9rkgkefL6M1PHWH9TvqOk https://docs.google.com/spreadsheets/d/1JhGGSqTsSQnLdFmOsl10EBz0qTV3ITlcOKBItAg2TV4 https://docs.google.com/forms/d/e/1FAIpQLScgJYF0E5zO1RasrQeT3iwYJf68TjmUTLgnF0TonfFi0Gikmw/viewform?usp=sf_link https://www.google.com/maps/d/edit?mid=1AxYu1LzK4aKwh6qR8EeNyB9isYFW5uuc&ll=18.364782016499376%2C-92.41699249999999&z=3 https://www.youtube.com/playlist?list=PLATdmBn-EDCAqaMO7Y43cOZbLAgfyKxEp https://www.blogger.com/profile/13075398158338409612 https://replicabags1120.blogspot.com https://sites.google.com/site/replicabags1120/ https://docs.google.com/spreadsheets/d/1F_4rKyZty67xuFnUObcPsWKqB_SK1IWIDubgLn7p4Q4 https://drive.google.com/drive/folders/1isBdRQB5hHyhwZz3zN77evylMN3QHX4R?usp=sharing https://drive.google.com/file/d/1R9bNQfc6uUh2PpB0uHWyBb38B71_Gi18/view?usp=sharing https://docs.google.com/document/d/1Tn2wbtdpIAOutfHt1NcN3-B3rQFdvs8xjXyMUByuNz0 https://docs.google.com/spreadsheets/d/1LEdVd-DfYTzdEJ4H3yB_W0v7uMRrO-rHVLwFNNV6Yqs https://docs.google.com/forms/d/e/1FAIpQLSdk0Q7yQgnGw34VlITUc5en-5GfMFOKdKpUHl-9lMMK_TpgWw/viewform?usp=sf_link https://calendar.google.com/calendar/event?eid=N2ttanI2NWc1ajgyYXE0aDY0cWtrbjg4Y20gZG9yeWJlbGxpcGFubmk5QG0 https://www.google.com/maps/d/edit?mid=1tBVtiwpbvSOxJY_FytSJHGglfbfaSc8D&ll=18.364782016499376%2C-92.41699249999999&z=3 https://www.youtube.com/playlist?list=PLd3vBGH7mrWPDkxOkUJDdpfGJRFJi5zi6 https://www.blogger.com/profile/13254611077736168499 https://replicabags1122.blogspot.com https://sites.google.com/site/replicabags1122/ https://docs.google.com/spreadsheets/d/1bDpY3DXGeqwQ3sskzs89COEy3MO64_nCE-4L60ai5L0 https://drive.google.com/drive/folders/1RKL-_dcM_aFbJ8bt9Z0zidSKwLGM6V4f?usp=sharing https://drive.google.com/file/d/1PJ_477n5fknPeivTBwVM7gWc01MtUfax/view?usp=sharing https://docs.google.com/document/d/1Dtot_u7BqVYg_pT7jVkLf-1qKv1BVlwnD9I_WoBCV7c https://docs.google.com/spreadsheets/d/1QkXvQ8zpcfV-0z6YMNhr_vOAcAc1r81v04gCkPp0yp4 https://docs.google.com/forms/d/e/1FAIpQLScroU7kzXGpcKafaLfMon47uFKNv7N-gy4vLOqsE3piZduvQw/viewform?usp=sf_link https://www.google.com/maps/d/edit?mid=1xraXB5ZP6IWNq1vnUuHbICdK-hqEAxmZ&ll=18.364782016499376%2C-92.41699249999999&z=3 https://www.youtube.com/playlist?list=PLaCuorAY86_g9lHl4-9_FJVoXBKl3aLhE https://replicabags1123.blogspot.com https://sites.google.com/site/replicabags1123/ https://docs.google.com/spreadsheets/d/1i9_B6KsPSpxioipAcLHeVmTL7oHGYUMSybvVTUmea0k https://drive.google.com/drive/folders/1OAU_UcCLttgy3EilR4drqur2o8I03Pk5?usp=sharing https://drive.google.com/file/d/1oYfHMkxxCZ6Z4Di6g6eK5d-PLHvnxmcY/view?usp=sharing https://docs.google.com/document/d/1IOqVpZjz6AWyguRQlRoqk_LuGGodCFGd3xXlDYFMkSs https://docs.google.com/spreadsheets/d/1yRSfnVZVGEZpjt_0BgGx4tQFrw8iS75GDPHITzFDoxs https://docs.google.com/forms/d/e/1FAIpQLScuwOAfAsN7UkRYwvB1lUHWn-HPBhfB39LXLmDVwgeesYkMew/viewform?usp=sf_link https://www.google.com/maps/d/edit?mid=1p61dMnn2hPQ3DUC5JSfqc6AEChQxC4Wj&ll=18.364782016499376%2C-92.41699249999999&z=3 https://www.youtube.com/playlist?list=PLlY5WvJbhejhjOeoyulEJJQiyB79ss_Bd https://www.blogger.com/profile/10470124376382179987 https://replicabags1124.blogspot.com https://sites.google.com/site/replicabags1124/ https://docs.google.com/spreadsheets/d/1fpX8leqOBn0zpLxFU2zph1FFURtlby-yquPNLyZE38A https://drive.google.com/drive/folders/1nuz0VWkyVCDmGV9zHwx5zFxFxy3tZkWd?usp=sharing https://drive.google.com/file/d/1-txWvPSVmpOXqyt7eUVcWC-nNhJKSNz_/view?usp=sharing https://docs.google.com/document/d/1dyQdeH5f2hTuHDZ8QrpW3jSk9wRphVwfJIWjBLHwdwQ https://docs.google.com/spreadsheets/d/1slLu9TcQK6rpLkoX3MptQwakGxQHUuSigNineWBCEAU https://docs.google.com/forms/d/e/1FAIpQLSe1Z6RQpixGf76Cx7dEEVV4nunpc3XXkzo04OcCo-6czWhvTw/viewform?usp=sf_link https://calendar.google.com/calendar/event?eid=M2JxZWlrc2psbjc5ZXFzMG83ZjR1ZjNiaTYgbm9hbWltYWprdXRAbQ https://www.google.com/maps/d/edit?mid=15NkKpvQO0K-b_Z9nORxDSCNVrqNLJGQ3&ll=18.364782016499376%2C-92.41699249999999&z=3 https://www.youtube.com/playlist?list=PLE-9cibR65KQb1bOeLvTxKq_8l7z2tzHL https://www.blogger.com/profile/03138538776579909281 https://replicabags1125.blogspot.com https://sites.google.com/site/replicabags1125/ https://docs.google.com/spreadsheets/d/1sbf8BKEHSfkT7OHxmka-glUviizYSDcs7YsV7vLxPEQ https://drive.google.com/drive/folders/1pn8k1E5dteInDmJRWKYpkDARtzWXWlRO?usp=sharing https://drive.google.com/file/d/10PqxtS9eisPLjIY1F4MpGp0bUqxVmHKU/view?usp=sharing https://docs.google.com/document/d/1bQJbOIf_wSEI6w64fcCKuBE0NERxNxu7ZyPX76DI59Y https://docs.google.com/spreadsheets/d/1VEd6yYv7HTo4EzvSurjUeZ2MNVYCuQBtcY_Kvrk22_U https://docs.google.com/forms/d/e/1FAIpQLSdPBStJd8G5um1iOimY6Br8JPvk2_blr40BHvzHDcQqDBkTYw/viewform?usp=sf_link https://www.google.com/maps/d/edit?mid=1cx8IwSyzuyjrOWUe_kj4TSurcTsLN_L9&ll=18.364782016499376%2C-92.41699249999999&z=3 https://www.youtube.com/playlist?list=PLXvdXy7e9b65FlL39hLQ-cxWAdFNfJfgT https://www.blogger.com/profile/07075126685255927487 https://replicabags1126.blogspot.com https://sites.google.com/site/replicabags1126/ https://docs.google.com/spreadsheets/d/1LW5R_0rRYUQq6FR5BDxq7oOMuWf45n3StDnZ7Lo8LvU