Poor Fish Testsuite

Jekyll2016-10-15T10:00:42+02:00/Poor Fish TestsuiteVery hard chess test suite Smirin-HIARCS 8, KC-CB INT 20022016-10-15T00:00:00+02:002016-10-15T00:00:00+02:00/positions/pf006<p>FEN: 8/1p2b3/6k1/5p2/p2NbP1p/P1B1P1p1/1P5P/6K1 w - - 0 47<br /> Source: <a href="http://home.scarlet.be/vincentlejeune/chess/hard2016beta6.epd">Hard 2016.78</a> by Vincent Lejeune<br />  Best move: <strong>h3</strong></p> <p>White exchange bishops and blocks the position, finding a draw in a hopeless and lost endgame</p> <iframe height="1143" width="827" frameborder="0" scrolling="no" marginheight="0" marginwidth="0" src="http://pgn4web-board.casaschi.net/?am=n&d=3000&ih=92&ss=64&ps=d&pf=d&lcs=_XNo&dcs=O8AB&bbcs=O8AB&bscs=b&hm=n&hcs=r4fT&bd=s&cbcs=YeiP&ctcs=$$$$&hd=c&md=f&tm=25&fhcs=$$$$&fhs=19&fmcs=$$$$&fccs=v71$&hmcs=_XNo&fms=19&fcs=m&cd=i&bcs=____&fp=25&hl=f&fh=1143&fw=827&pe=722$A_e0G3vlnevOTbF6DaT$EG80otD6fachZOCqWbwLjQzJzuGXGf7Oo0TOo$EG4wvjM4cfv$Ni75hU2$8HytDL1AsVvpJYgD$hp75ENd$Sx9kSx1v2kSx0IInwL1LpIdfWmoKP2vmkRp0FPU0A$2jo$lNDbn$g5fij5f2I2gSqz5n1TwD17k0H$hLH8ka35P0dFl7m6AP5T$qtD1SN24$Jhg$gdfoL6mIByJNDbd$cgzshRU14$to$M1Ax2$18x0zIfw$$FEpv9FlDfL6sTyS7gv$SHf3fF3p0RJND1GHF3r$cgz0en_fvD1NUbP8pw2vdWc$kdfvr2IsJuD1GIN59$1SxazxDnn05fYN57$bg38Vwy$m87v9whMB$0jo$gbfOfazRfCx5r$4K3m8XwwfazzfYF5d$1DN$IJfLr$at7YFb9$1DNenlnb$qt71tMZy1$m8Bv7wjnn1U830qQ5b$Jio2RePnP1U8303M5d$Jic1q7Lj0UxL9BDLT$8G30kpM50LekpM4Ngjpj$bQFaxrygv2jo$k3gE$azPgsKzpn1UbPmjTHQv4Np7pQ5I$Jic$lRgGvazPf3i6Vc4$Jic$k3gEL4Np71RNc2vm8Bv7B7TD1U7NLOo0TOo$0">your web browser and/or your host do not support iframes as required to display the chessboard</iframe>

FEN: 8/1p2b3/6k1/5p2/p2NbP1p/P1B1P1p1/1P5P/6K1 w - - 0 47 Source: Hard 2016.78 by Vincent Lejeune

Gusev-Auerbach, Chelyabinsk 19462016-10-14T00:00:00+02:002016-10-14T00:00:00+02:00/positions/pf005<p>FEN: 4q1kr/p6p/1prQPppB/4n3/4P3/2P5/PP2B2P/R5K1 w - - 1 24<br /> Source: <a href="http://home.scarlet.be/vincentlejeune/chess/hard2016beta6.epd">Hard 2016.52</a> by Vincent Lejeune<br />  Best move: <strong>Qxe5</strong></p> <p>White sacrifies queen to block king in a corner and to force opposite queen to guard against mate in f8. In this brillant “Gusev’s Immortal” game, white started to sacrifice pieces even before the Qxe5 move.</p> <iframe height="1143" width="827" frameborder="0" scrolling="no" marginheight="0" marginwidth="0" src="http://pgn4web-board.casaschi.net/?am=n&d=3000&ih=46&ss=64&ps=d&pf=d&lcs=_XNo&dcs=O8AB&bbcs=O8AB&bscs=b&hm=n&hcs=r4fT&bd=s&cbcs=YeiP&ctcs=$$$$&hd=c&md=f&tm=25&fhcs=$$$$&fhs=19&fmcs=$$$$&fccs=v71$&hmcs=_XNo&fms=19&fcs=m&cd=i&bcs=____&fp=25&hl=f&fh=1143&fw=827&pe=513$APyYuAp05e91BHA_e0G3vfuUtZ2gBgCAWXwr9pNflmF0P1agC4U6OmFe1BHzlKAP119j4coaZt2l7lNZvfX9pNflmF0MqaV02LEG8mHxYuuaQqf7EvEG4wv3M4cfv$Ni7SN5$Sx9kSxb$5GK328ryf0Fbwezr$3g32jU0f0BBa$zNDr$JeaD18N0L3HgRyz5j$AF$IAfnL3Xfbij5f0ej28Jfov0IVwaxLR$03o2m7cD$RXgrzk0J$DN6hdfnD$Mdf4jC7bT09EduDJhrl56$5FAN0FErw1v3VErv9Fm7fn$iSePm8Jfw$dQhU09Erw2$dQSNdPTHgv2Ihpw9EcfyfdE5yI67gL$lOgRB7fj$8Ezcpw2v$FPM2kpnl76$po6IfMf2kpnwPwjbb1Uc3dZo23$Vzx6h4fMvdE5wejbL2FlDiLHoD4cfWIN5r0izdz9wwf94fnXD0">your web browser and/or your host do not support iframes as required to display the chessboard</iframe>

FEN: 4q1kr/p6p/1prQPppB/4n3/4P3/2P5/PP2B2P/R5K1 w - - 1 24 Source: Hard 2016.52 by Vincent Lejeune

Bagirov-Grigorian, USSR 19762016-10-01T00:00:00+02:002016-10-01T00:00:00+02:00/positions/pf004<p>FEN: 1rb4k/p5np/3p1rp1/1ppB4/2N2P2/1P2R1P1/P1P4P/4R1K1 w - - 0 24<br /> Source: <a href="http://home.scarlet.be/vincentlejeune/chess/hard2016beta6.epd">Hard 2016.14</a> by Vincent Lejeune<br />  Best move: <strong>Re8+</strong></p> <p>White sacrifies quality to force black in an amazing zugzwang position with still so many pieces left on the board.</p> <iframe height="1143" width="827" frameborder="0" scrolling="no" marginheight="0" marginwidth="0" src="http://pgn4web-board.casaschi.net/?am=n&d=3000&ih=46&ss=64&ps=d&pf=d&lcs=_XNo&dcs=O8AB&bbcs=O8AB&bscs=b&hm=n&hcs=r4fT&bd=s&cbcs=YeiP&ctcs=$$$$&hd=c&md=f&tm=25&fhcs=$$$$&fhs=19&fmcs=$$$$&fccs=v71$&hmcs=_XNo&fms=19&fcs=m&cd=i&bcs=____&fp=25&hl=f&fh=1143&fw=827&pe=458$APyYuAp05e91BHA_e0G3vm_otR56LoY$mzLOWTJ4co7aaQ$V0mtu3kydeSKGu4LpyPoUX5iZu0K9xBHzlKAP1Oxwwilh_CvQx4HKD3e1BHz4AVvrlNZvfX9pNkW7KmSNYlP1Pd4cnHb0Ez28rw$$BzfCN5$8xcXy$3Rf3Bk5v08DwrtmgL$M3fij4$m6ANLoWjd$Sx0IAfd$cI3dz9vNv3HfhJXfnL$FWM1lDbv$kjND5FBjHbL$Q5fbAN2n0PwDsRU0I$5Ex3FzM0J$5Fi32k8x24$1Fi3sprl5r$WK3crvLT$lYuDJtrw1vdzo4cfvL6pbwGj7f2Kx5wQaz7n0RFm4CpErw5$s7UZvpE67gD6pzr_grBk1d$VBUZxUWz79$bgztQ16$enyR4x0Lazzgi3bj$Qx26A$0">your web browser and/or your host do not support iframes as required to display the chessboard</iframe>

FEN: 1rb4k/p5np/3p1rp1/1ppB4/2N2P2/1P2R1P1/P1P4P/4R1K1 w - - 0 24 Source: Hard 2016.14 by Vincent Lejeune

Brzozka-Bronstein, Miskolc 19632016-09-29T00:00:00+02:002016-09-29T00:00:00+02:00/positions/pf003<p>FEN: 1r6/4k3/r2p2p1/2pR1p1p/2P1pP1P/pPK1P1P1/P7/1B6 b - - 0 48<br /> Source: <a href="http://home.scarlet.be/vincentlejeune/chess/hard2016beta6.epd">Hard 2016.10</a> by Vincent Lejeune<br />  Best move: <strong>Rxb3+</strong></p> <p>Black sacrifies a rook but after 49 Kxb3 Rb6+ 50 Kc2 Rb2+ Black’s Rook runs amok in White’s position, winning the e and c pawns and acquiring a central pawn steam-roller.</p> <iframe height="1143" width="827" frameborder="0" scrolling="no" marginheight="0" marginwidth="0" src="http://pgn4web-board.casaschi.net/?am=n&d=3000&ih=95&ss=64&ps=d&pf=d&lcs=_XNo&dcs=O8AB&bbcs=O8AB&bscs=b&hm=n&hcs=r4fT&bd=s&cbcs=YeiP&ctcs=$$$$&hd=c&md=f&tm=25&fhcs=$$$$&fhs=19&fmcs=$$$$&fccs=v71$&hmcs=_XNo&fms=19&fcs=m&cd=i&bcs=____&fp=25&hl=f&fh=1143&fw=827&pe=990$APyYuAp096y1C3a8uOLpM74Bl7AUl$CRq_oJ6t4d7lh1NYfdvgYTJ2qv8YXF_HfbF9rfHzlKAP1OyyvEM1NmXX5HfIAY$wTjTwo7aaQ$TIAY$wTjTwo9YzmGWUtGp05LD9rfHl504bfAF3$vo8z28rwv7io1u7L1$zPf3Bk5vfJeaDm6APr05XgKz4$vpy7EN6$fWg3medfd02i75YN29$v8E32j9vMvgSROf4HF27005fVgN2b06jx5yJS7cv3sRx0CIfqf7SF6jxDcL3qGizckEN24$vnx7EF2d$voa328rvLT328VwQcN39$v9y7WHyz7b1$KpvnC7fv328Q8N$FzU15$vpEdfWjC7gv3dWo$Mbfyf7sSF6pWQ1d$yIsVv9y7fj1$FPoZvpI5fwL3sRx0xnw$T3spg6IfMf38bvoazbb1azzgQEN5704M3gQGzbn1aIHvBDov38nvBePbP1aFbxUbF5r0$hgDtQ21vfYxdEcdfML303g6HfLr1dzpc6Bgwf3sRxazxDLn3spRpax4gw$7WKj23ry2$gPRPfcfFbn0$lOfcWznP1$F7voG3nT1$BygSS7Lj1dWc$QsV_gwL3sGKjsFPOY50L7JFPNdIr_gEf3mjg6lzuDPn3mjc6h7yh$gSoDWjy7PL3sic6pb_gG$7JRxdQExcp0$k3gKjpT1dI5yt7Pj1$IByI5gEL3spo05uDPd04M3gRwDTD1dQXN9nywvgSMmVaIXyx$f4W3stc65$yJNKPmjQ6b$yI1KPmcnyBvgUCVaFbyC$f3QFdK7_gLD3m85yq7TT1dQEyY4Oh7Td04NoD7x1A$gskU33cByH96ya$0">your web browser and/or your host do not support iframes as required to display the chessboard</iframe>

FEN: 1r6/4k3/r2p2p1/2pR1p1p/2P1pP1P/pPK1P1P1/P7/1B6 b - - 0 48 Source: Hard 2016.10 by Vincent Lejeune

Grandelius-Raznikov, Albena 20112016-09-26T00:00:00+02:002016-09-26T00:00:00+02:00/positions/pf002 <p>FEN: 8/4nk2/1p3p2/1r1p2pp/1P1R1N1P/6P1/3KPP2/8 w - - 1 50<br /> Source: <a href="http://www.arasanchess.org/arasan19a.epd">Arasan 19.116</a> by Jon Dart<br />  Best move: <strong>Nd3</strong></p> <p>A game of the European Youth Chess Championship. The position occurred at move 50, the previous move ..Rb5 traps the black rook, white king sacrifices the quality to walk toward and then to take the trapped rook, entering in a won endgame.</p> <iframe height="1143" width="827" frameborder="0" scrolling="no" marginheight="0" marginwidth="0" src="http://pgn4web-board.casaschi.net/?am=n&d=3000&ih=98&ss=64&ps=d&pf=d&lcs=_XNo&dcs=O8AB&bbcs=O8AB&bscs=b&hm=n&hcs=r4fT&bd=s&cbcs=YeiP&ctcs=$$$$&hd=c&md=f&tm=25&fhcs=$$$$&fhs=19&fmcs=$$$$&fccs=v71$&hmcs=_XNo&fms=19&fcs=m&cd=i&bcs=____&fp=25&hl=f&fh=1143&fw=827&pe=917$lh_CvQxf7ncz_yeeK9W8z5mKMix4zvHKj2D3utkkaPsYBVDndZawix4zxQXJvlrnD9rfHA_e0G3aouf85Br4d7lh1NYfdaouf855b4d7lhVgZKNI$y6A0ix4xLL7Ex9pw$75ho$QdfL3qM49WM5$fcmt7iU5vfBN$zNDT10F7yu790$hp718N6$fbgzdW9vr10IVyI67bD14MUs$iO7bn32cjo$kjPfo$7JFBx0xpvO$fPN0zJfq$75FAOY$kjJfqf75SF$zNDcL308VvpC7bj1dPc2S7bT1$xbwrtmfnr16sDxUTF39$yFlOgQaqz7b16sHvC7fv328nwPwj7n16hnxUcN3n0$lPgWz7P1$FbytDgL3jGKj3GKj7902Ih4fcjwj7r0$mIgRI2fvr1dQDpdW9wxv71pU$QdfLL75RNdz9wx$grzp6IfMv7WijsRk2b$voa3239wBvgRx718F5r0$RRf4Kzb904M2fAN5d$v9BD1Gijb6$yIppwGznj06p7yRDLn328nxU7Fb702R7WTFbb06sDyI1DMv3mqc6ppy5vgSt7J7U5d$xWp7Jh9y0f7XN3YgwL3cnyQlHgvr1ekpM6lIgEf32qo$NlDPn33o$QsTyh$fhJXgrCNcb04Q5grAFcn01i7iM5I$xUEz8Qho5J$vo83m8Xygf7JYxdQpMZyiv7JFQx3IgDr1aBIfAxd9$wdFl7JhQ62$xVGm7JFAxd704QcgrBNdb0$RRgskW3rL1aFWQ4Nq7UD3m3M2R7UL3m3o0yNxL0">your web browser and/or your host do not support iframes as required to display the chessboard</iframe>

FEN: 8/4nk2/1p3p2/1r1p2pp/1P1R1N1P/6P1/3KPP2/8 w - - 1 50 Source: Arasan 19.116 by Jon Dart

Study by Ladislav Salai Jr, Šachová skladba 20112016-09-26T00:00:00+02:002016-09-26T00:00:00+02:00/positions/pf001<p>FEN: 4K1k1/8/1p5p/1Pp3b1/8/1P3P2/P1B2P2/8 w - -<br /> Source: <a href="http://www.arasanchess.org/arasan19a.epd">Arasan 19.189</a> by Jon Dart<br />  Best move: <strong>f4</strong></p> <p>This study won the 1st Prize in Šachová skladba (111/10628) 2011-04, <strong>f4</strong> allows white to avoid a zugzwang position at the end of a very deep combination. Beautifully explained <a href="http://www.jsbeasley.co.uk/ochess/salaistudy.pdf">here</a>.</p> <iframe height="1143" width="827" frameborder="0" scrolling="no" marginheight="0" marginwidth="0" src="http://pgn4web-board.casaschi.net/?am=n&d=3000&ss=64&ps=d&pf=d&lcs=_XNo&dcs=O8AB&bbcs=O8AB&bscs=b&hm=n&hcs=r4fT&bd=s&cbcs=YeiP&ctcs=$$$$&hd=c&md=f&tm=25&fhcs=$$$$&fhs=19&fmcs=$$$$&fccs=v71$&hmcs=_XNo&fms=19&fcs=m&cd=i&bcs=____&fp=25&hl=f&fh=1143&fw=827&pe=238$lhamNV0oMxvEM1NmXX5HfIAY$zpoLjTwo7aaQ$TIAY$znnLjTwoaE6V_9P1btj4d7lhOEnp0nJb65qdcycYcRMGOsygBOynQUAU2pXn84U2oN0_0V2P9fnjQxLP8nv9Fl7g4RND1Rx5gsiz0tQ57pM49Inyj0cb_grBk67JSFazJfk4MbfYF67JhM4Nu76grijenvNzm8nxUWj5c1ia_Dbtj$0">your web browser and/or your host do not support iframes as required to display the chessboard</iframe>

FEN: 4K1k1/8/1p5p/1Pp3b1/8/1P3P2/P1B2P2/8 w - - Source: Arasan 19.189 by Jon Dart