21...f6? [Black defends his central e5βpawn but at the high price of fatally weakening his kingside pawn structure.]
[21...Nc6! would be correct: 22.Ra3 Bc8 23.Nd3 Re8 24.Kg2 Rb8 25.Qc1 (25.Nxc5 Qe7 26.Qe3 (26.Nd3 Nxg5β+) 26...Rxb2Β΅) 25...Nf8 26.Nxc5 Nd4 27.Nxd4 exd4 28.Nb3 Rd8Β΅; 21...Re8 22.Nd3 Nxd3 23.Bxd3 Qe7 24.Qc1 Rab8-/+]
22.gxf6 gxf6 23.Kh2 Qd7 24.Qe3?= [24.Rg1+! Kf7 25.Nb3 Bc8 26.Rg3 Qd6 27.Bc2 h4 28.Nxh4 Ng5 29.Rd1 Qe7 30.Nf3 Nxh3 31.Rxd8 Qxd8 32.Nxe5+ fxe5 33.Qxe5+β]
1β0
[21...Nc6! would be correct: 22.Ra3 Bc8 23.Nd3 Re8 24.Kg2 Rb8 25.Qc1 (25.Nxc5 Qe7 26.Qe3 (26.Nd3 Nxg5β+) 26...Rxb2Β΅) 25...Nf8 26.Nxc5 Nd4 27.Nxd4 exd4 28.Nb3 Rd8Β΅; 21...Re8 22.Nd3 Nxd3 23.Bxd3 Qe7 24.Qc1 Rab8-/+]
22.gxf6 gxf6 23.Kh2 Qd7 24.Qe3?= [24.Rg1+! Kf7 25.Nb3 Bc8 26.Rg3 Qd6 27.Bc2 h4 28.Nxh4 Ng5 29.Rd1 Qe7 30.Nf3 Nxh3 31.Rxd8 Qxd8 32.Nxe5+ fxe5 33.Qxe5+β]
1β0
26.Qxb4! [26.Bd2 Qxa5 27.Bxa5 Ra8 28.Bc3 Rxa4-/+; 26.Bc7 Qxa5 27.Bxa5 Ra8-/+]
26...Rxb4 27.Ra1 Rb7 28.a5 Ba6 29.Bf1 Ra7 30.Rb1 h6 31.Bxa6 Rxa6 32.Bd2 Kf8 33.Rb6 Ra7 34.Rxc6+β
1β0
26...Rxb4 27.Ra1 Rb7 28.a5 Ba6 29.Bf1 Ra7 30.Rb1 h6 31.Bxa6 Rxa6 32.Bd2 Kf8 33.Rb6 Ra7 34.Rxc6+β
1β0
45...fxg4! [By this exchange, Black leaves White with a weak pawn on g4 and then intends to lift his rook to grab the pawn.]
[45...Kf6?! 46.gxf5 Bxf5 47.Bc2! Re8 48.Ng2 Bxc2 49.Rxc2 Kf5 50.Re2Β³; 45...f4?! 46.Bxg6+ Kxg6 47.Ng2 Rh3 48.Kf2 fxe3+ 49.Nxe3 Rh2+ 50.Ng2Β³]
46.fxg4 Rh4! 47.Bxg6+ Kxg6 48.Nf3 Rxg4+ 49.Kf2 Re4!-/+ [All white pawns are in black squares and Black can target them by his bishop.]
[49...Bg3+!? 50.Ke2 Bc7 51.Kf2 Re4!-/+ ξg4]
[45...Kf6?! 46.gxf5 Bxf5 47.Bc2! Re8 48.Ng2 Bxc2 49.Rxc2 Kf5 50.Re2Β³; 45...f4?! 46.Bxg6+ Kxg6 47.Ng2 Rh3 48.Kf2 fxe3+ 49.Nxe3 Rh2+ 50.Ng2Β³]
46.fxg4 Rh4! 47.Bxg6+ Kxg6 48.Nf3 Rxg4+ 49.Kf2 Re4!-/+ [All white pawns are in black squares and Black can target them by his bishop.]
[49...Bg3+!? 50.Ke2 Bc7 51.Kf2 Re4!-/+ ξg4]
Unity Chess Strategy Multiple Choice 247
public poll
C) Qg6 β 7
πππππππ 70%
Jonas, Nikhil, Majid, @Steve1234567890qwerty, @ab0987654321Qwerty, Matthew, ThebestBoss@_Kasyap
A) Bd7 β 2
ππ 20%
Babak, Ψ§ΩΫΩ
B) NΓd4 β 1
π 10%
Pejman
π₯ 10 people voted so far.
public poll
C) Qg6 β 7
πππππππ 70%
Jonas, Nikhil, Majid, @Steve1234567890qwerty, @ab0987654321Qwerty, Matthew, ThebestBoss@_Kasyap
A) Bd7 β 2
ππ 20%
Babak, Ψ§ΩΫΩ
B) NΓd4 β 1
π 10%
Pejman
π₯ 10 people voted so far.
Unity Chess Endgame Multiple Choice 247
public poll
B) g7 β 10
πππππππ 77%
@fantastic45, Jonas, Nikhil, Majid, Babak, Ψ§ΩΫΩ, @ab0987654321Qwerty, Ismail, Matthew, ThebestBoss@_Kasyap
A) Nc3 β 3
ππ 23%
Saeid, @SH_M1743, @Steve1234567890qwerty
C) Nb6
β«οΈ 0%
π₯ 13 people voted so far.
public poll
B) g7 β 10
πππππππ 77%
@fantastic45, Jonas, Nikhil, Majid, Babak, Ψ§ΩΫΩ, @ab0987654321Qwerty, Ismail, Matthew, ThebestBoss@_Kasyap
A) Nc3 β 3
ππ 23%
Saeid, @SH_M1743, @Steve1234567890qwerty
C) Nb6
β«οΈ 0%
π₯ 13 people voted so far.