carldaman wrote: ↑Fri Jul 12, 2019 8:07 pm
[d]r1b2rk1/pp3ppp/1n2p3/3pP3/2P2B2/b1PB1qP1/P1Q1NP1P/1K1R3R w - - 0 1
Code: Select all
Analysis by CyberNezh-dev:
1.Nd4
White has a decisive advantage: +- (2.55 ++) Depth: 32/51 00:00:55 414MN
1.Nd4
White has a decisive advantage: +- (3.16 ++) Depth: 32/51 00:00:55 415MN
1.Nd4 Qh5 2.g4 Qxg4 3.Qd2 Nxc4 4.Bxc4 dxc4 5.Rhg1 Qh5 6.f3 Be7 7.Bg5 Bxg5 8.Rxg5 Qh6 9.Rdg1 g6 10.Nb5 Bd7 11.Rxg6+ fxg6 12.Qxh6 Bxb5 13.h4 Rxf3 14.h5 Be8 15.Qg5 Kh8 16.Qg2 Rf7 17.Qh3 Rg7 18.h6 Rf7 19.Qxe6
White is winning: +- (3.51) Depth: 32/51 00:00:55 419MN
1.Nd4 Qh5 2.g4 Qxg4 3.Qd2 Be7 4.h4 Nxc4 5.Bxc4 dxc4 6.h5 Rd8 7.Ka1 b5 8.Rdg1 Rxd4 9.cxd4 Bb4 10.Rxg4 Bxd2 11.Bxd2 Bb7 12.Rhg1 g6 13.Rh4 Bd5 14.Rb1 Rb8 15.Bb4 Rb7 16.Rf4 Kg7 17.Kb2 c3+ 18.Kxc3 Bxa2 19.Rg1 Bd5 20.hxg6 Rc7+ 21.Kb2 hxg6
White is clearly winning: +- (4.49) Depth: 35/61 00:01:29 677MN
(, 12.07.2019)
We clearly need better engines than St'Fish.
First move for white, bm is projected as Nd4, but Stockfish stubbornly insists on cxd5, worth a measly quarter of a pawn:
[d]r1b2rk1/pp3ppp/1n2p3/3pP3/2P2B2/b1PB1qP1/P1Q1NP1P/1K1R3R w - - acd 36; acs 203; bm cxd5; c3 "Nd4"; ce 24; pm cxd5; pv cxd5 Nxd5 Bg5 Bc5 Bxh7+ Kh8 Bd3 Bd7 h4 Ba4 Qxa4 Qxe2 Bxe2 Nxc3+ Kc2 Nxa4 Kb3 b5 Bxb5 Nb6 Rd2 a6 Rc1 Bb4 Kxb4 axb5 Be7 Rfb8 Bd6 Rb7 Kb3 Nc4 Rdd1 Rba7 a3 Kh7 f4 Ra4 Bb4 Na5+ Bxa5 R8xa5 Rc7 Rxa3+ Kb4 R3a4+ Kc5 b4+ Kc4 b3+ Kxb3 Ra3+ Kc4 R3a4+ Kd3 Rd5+ Ke2 Ra2+ Ke1 Rxd1+ Kxd1 Rg2 Rxf7 Rxg3 h5 Rh3 Ke2 Rxh5 Kf3 Kg6 Rb7 Rh1;
First response for black after forcing Nd4, Sockfish agrees with Qh5 but thinks it is a drawn position:
[d]r1b2rk1/pp3ppp/1n2p3/3pP3/2PN1B2/b1PB1qP1/P1Q2P1P/1K1R3R b - - acd 36; acs 23; bm Qh5; c3 "Qh5"; ce 0; pm Qh5; pv Qh5 Be2 Qg6 Be3 Be7 Qxg6 fxg6 Bg4 Kf7 cxd5 Nxd5 Rd3 Bd7 Rhd1 Rac8 Nxe6 Nxe3 Ng5+ Kg8 Rxd7 Nxd1 Be6+ Kh8 Rxe7 Rxc3 Rd7 Nxf2 Kb2 Rd3 Nf7+ Kg8 Nd6+ Kh8 Bb3 Re3 Nf7+ Kg8 Nd8+ Kh8;
Second move for white after Qh5 Stockfish wants to play h4, not g4 and still thinks it is drawn:
[d]r1b2rk1/pp3ppp/1n2p3/3pP2q/2PN1B2/b1PB2P1/P1Q2P1P/1K1R3R w - - acd 36; acs 35; bm h4; c3 "g4"; ce 0; pm h4; pv h4 dxc4 Be4 Bd7 g4 Qxg4 Qd2 Bc6 Nxc6 bxc6 Rdg1 Qh5 Rg5 Qh6 Rg4 Qh5;
Second move for black, after forcing g4, we see some kind of a problem. Suggested move for black is Qxg4, but Stockfish wants Qh4 with a plus score for black:
[d]r1b2rk1/pp3ppp/1n2p3/3pP2q/2PN1BP1/b1PB4/P1Q2P1P/1K1R3R b - - acd 36; acs 71; am Qxg4; bm Qh4; c3 "Qxg4"; ce 15; pm Qh4; pv Qh4 cxd5 Nxd5 Bg3 Qh3 c4 Nb4 Qe2 Nxd3 Rxd3 Qg2 Qf1 Qxf1+ Rxf1 Bc5 Nb5 b6 Nd6 Ba6 Rfd1 Rfd8 Bh4 Rdb8 f4 b5 cxb5 Bxd6 Rxd6 Bxb5 Rd8+ Rxd8 Rxd8+ Rxd8 Bxd8 h5 gxh5 Kh7 h3 Kh6 Be7 Kxh5 Kc2 Bf1 Kc3 Bxh3 Bc5;
After forcing Qxg4 white is going to win. But black is not going to play Qxg4 on the previous ply, but instead Qh4.
[d]r1b2rk1/pp3ppp/1n2p3/3pP3/2PN1Bq1/b1PB4/P1Q2P1P/1K1R3R w - - acd 36; acs 207; bm Qd2; c3 "Qd2"; ce 218; pm Qd2; pv Qd2 Qh5 Rhg1 g6 Bg5 Nxc4 Qf4 f6 Bxf6 Rf7 h4 Bd7 Nf3 Bf8 Rg5 Bh6 Rxh5 Bxf4 Bxg6 Rxf6 Bxh7+ Kf7 exf6 Kxf6 Bd3 Rc8 Nd4 Be8 Rh8 Nd6 Ne2 Be5 Rh6+ Ke7 Rh7+ Bf7 f4 Bxc3 Nxc3 Rxc3 Kb2 Rc8 h5 a5 Bg6 a4 Bxf7 Nxf7 Rg1 Rc4;