MESON Chess Problem Database
Problem Display
PID: 153032 (5Q1q/4bbp1/7n/2p3R1/3k4/n2p4/B2P2K1/2N1R3 w - - 0 1)
Semenenko, Valery Yurevich
Sachova skladba, 1985
#2
7 + 9
SOLUTION
- SOUND
- Sets
- 1...Bf6
- 2.Qxc5#
- 1...Bd8
- 2.Qxc5#
- 1...Bxa2
- 2.Qf4#
- 1...Bb3
- 2.Qf4#
- 1...Bc4
- 2.Qf2#
- 2.Qf4#
- 1...Bd5+
- 2.Rxd5#
- 1...Bh5
- 2.Rd5#
- 2.Qf2#
- 2.Qf4#
- 1...Be6
- 2.Qf2#
- 2.Qf4#
- 1...Bg6
- 2.Rd5#
- 2.Qf2#
- 1...Be8
- 2.Rd5#
- 2.Qf2#
- 2.Qf4#
- 1...Bg8
- 2.Qf2#
- 2.Qf4#
- 1...Sc4
- 2.Sb3#
- 1...Sg4
- 2.Rxg4#
- 1...Sf5
- 2.Rg4#
- 1...Sg8
- 2.Rg4#
- 1...Bf6
- Tries
- 1.Sb3+?
- 1...Bxb3
- 2.Qf4#
- 1...Kc4!
- 1...Bxb3
- 1.Bxf7?
- threat
- 2.Sb3#
- 1...c4
- 2.Rd5#
- 1...Sxf7!
- threat
- 1.Re6?
- threat
- 2.Rd5#
- 1...Bxg5
- 2.Qd6#
- 1...Bxe6
- 2.Qf4#
- 1...Sc4
- 2.Sb3#
- 1...Sf5
- 2.Rg4#
- 1...c4!
- threat
- 1.Rge5?
- threat
- 2.R1e4#
- 2.R5e4#
- 1...Bd5+
- 2.Rxd5#
- 1...Bxa2
- 2.R1e4#
- 2.Qf4#
- 1...Bb3
- 2.R1e4#
- 2.Qf4#
- 1...Bc4
- 2.R1e4#
- 2.Qf2#
- 2.Qf4#
- 1...Bg6
- 2.Rd5#
- 2.Qf2#
- 1...Sc4
- 2.Sb3#
- 2.R1e4#
- 1...c4
- 2.R1e4#
- 1...Qh7!
- threat
- 1.Qxe7?
- threat
- 2.Re4#
- 2.Qxc5#
- 2.Qe3#
- 2.Qe4#
- 2.Qe5#
- 1...Bd5+
- 2.Rxd5#
- 1...Bxa2
- 2.Re4#
- 2.Qxc5#
- 2.Qe4#
- 1...Bb3
- 2.Re4#
- 2.Qxc5#
- 2.Qe4#
- 1...Qh7
- 2.Qxc5#
- 2.Qe3#
- 2.Qe5#
- 1...Qb8
- 2.Re4#
- 2.Qxc5#
- 2.Qe3#
- 2.Qe4#
- 1...Qc8
- 2.Re4#
- 2.Qe3#
- 2.Qe4#
- 2.Qe5#
- 1...Qe8
- 2.Re4#
- 2.Qxc5#
- 1...Qf8
- 2.Re4#
- 2.Qe3#
- 2.Qe4#
- 2.Qe5#
- 1...Be6
- 2.Qxc5#
- 1...Bg6
- 2.Rd5#
- 2.Qxc5#
- 2.Qd6#
- 2.Qe3#
- 2.Qe5#
- 2.Qd7#
- 1...Sc2
- 2.Re4#
- 2.Qxc5#
- 2.Qe4#
- 2.Qe5#
- 1...Sc4
- 2.Sb3#
- 2.Re4#
- 2.Qxc5#
- 2.Qe4#
- 1...Sg4
- 2.Re4#
- 2.Rxg4#
- 2.Qxc5#
- 2.Qe4#
- 1...Sf5
- 2.Re4#
- 2.Rg4#
- 2.Qe4#
- 2.Qe5#
- 1...c4
- 2.Re4#
- 2.Qc5#
- 2.Qe3#
- 2.Qe4#
- 2.Qe5#
- 2.Qa7#
- 1...g6
- 2.Re4#
- 2.Qxc5#
- 2.Qe3#
- 2.Qe4#
- 1...Qa8+!
- threat
- 1.Qxf7?
- threat
- 2.Sb3#
- 2.Rd5#
- 2.Qd5#
- 2.Qf2#
- 2.Qf4#
- 1...Bxg5
- 2.Sb3#
- 2.Qd5#
- 2.Qd7#
- 1...Sxf7
- 2.Rg4#
- 2.Rd5#
- 1...Qh7
- 2.Sb3#
- 2.Rd5#
- 2.Qd5#
- 2.Qf2#
- 1...Qb8
- 2.Rd5#
- 2.Qd5#
- 2.Qf2#
- 1...Qd8
- 2.Sb3#
- 2.Qf2#
- 2.Qf4#
- 1...Qf8
- 2.Sb3#
- 2.Rd5#
- 2.Qd5#
- 1...Qg8
- 2.Sb3#
- 2.Rd5#
- 2.Qf2#
- 2.Qf4#
- 1...Bd6
- 2.Sb3#
- 2.Rd5#
- 2.Qd5#
- 2.Qf2#
- 1...Bf6
- 2.Sb3#
- 2.Rd5#
- 2.Qd5#
- 2.Qd7#
- 1...Sc2
- 2.Sb3#
- 2.Rd5#
- 2.Qc4#
- 2.Qd5#
- 2.Qf4#
- 1...Sc4
- 2.Sb3#
- 2.Rd5#
- 2.Qxc4#
- 2.Qd5#
- 2.Qf4#
- 1...Sg4
- 2.Sb3#
- 2.Rxg4#
- 2.Rd5#
- 2.Qd5#
- 2.Qf4#
- 1...Sf5
- 2.Sb3#
- 2.Rg4#
- 2.Qd5#
- 1...c4
- 2.Rd5#
- 2.Qd5#
- 2.Qf2#
- 2.Qf4#
- 1...Qa8+!
- threat
- 1.Qb8?
- threat
- 2.Qf4#
- 2.Qe5#
- 2.Qb2#
- 1...Bd5+
- 2.Rxd5#
- 1...Bxg5
- 2.Qe5#
- 2.Qb2#
- 1...Bxa2
- 2.Qf4#
- 1...Bb3
- 2.Qf4#
- 1...Qh7
- 2.Qe5#
- 2.Qb2#
- 1...Bd6
- 2.Qb2#
- 1...Bf6
- 2.Qf4#
- 2.Qb2#
- 1...Bg6
- 2.Rd5#
- 2.Qe5#
- 2.Qb2#
- 1...Sb1
- 2.Qf4#
- 2.Qe5#
- 1...Sc4
- 2.Sb3#
- 2.Qf4#
- 1...Sb5
- 2.Qf4#
- 2.Qe5#
- 1...Sg4
- 2.Rxg4#
- 2.Qf4#
- 2.Qb2#
- 1...c4
- 2.Qf4#
- 2.Qe5#
- 1...g6
- 2.Qf4#
- 2.Qb2#
- 1...Qxb8!
- threat
- 1.Sb3+?
- Keys
- 1.Be6!
- threat
- 2.Sb3#
- 1...Bxe6
- 2.Qf4#
- 1...c4
- 2.Rd5#
- threat
- 1.Be6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 9
- Sets
- B(f);OGATE::QAB1(G),XP(d)
- B(g);OGATE,XB(C)::QAR2(G)
- B(g);OGATE::QAR2(G)
- B(g);CHECK,N_GUARD::R1(F),XB(g)
- S(a);SBLOCK,S_CUTB(g)::S(A)
- S(e);N_GUARD::R(F),XS(e)
- S(e);N_GUARD::R(F)
- Tries
- Try
- S(A);CHECK
- Vars
- B(g);OGATE,XS(A)::QAR2(G)
- Refutation
- K(c);P-FLIGHT
- Try
- B(C);XB(g)
- Threat
- S(A)
- Vars
- P(d);SBLOCK::R1(F)
- Refutation
- S(e);XB(C)
- Try
- R(B);
- Threat
- R1(F)
- Vars
- B(f);OGATE,XR(F)::QAR2(G)
- B(g);OGATE,XR(B)::QAR2(G)
- S(a);SBLOCK::S(A)
- S(e);N_GUARD::R(F)
- Refutation
- P(d);
- Try
- R(F);
- Threat
- DUALS(2)
- Vars
- B(g);CHECK,N_GUARD::R1(F),XB(g)
- P(d);::R1(B)
- Refutation
- Q(i);
- Try
- Q(G);XB(f)
- Threat
- DUALS(5)
- Vars
- B(g);CHECK,N_GUARD::R1(F),XB(g)
- B(g);::QAB1(G),XP(d)
- Refutation
- Q(i);CHECK
- Try
- Q(G);XB(g)
- Threat
- DUALS(5)
- Refutation
- Q(i);CHECK
- Try
- Q(G);
- Threat
- DUALS(3)
- Vars
- B(g);CHECK,N_GUARD::R1(F),XB(g)
- B(g);XB(C)::QAR2(G)
- B(g);::QAR2(G)
- B(f);::QAB(G)
- Refutation
- Q(i);XQ(G)
- Try
- Actual
- B(C);
- Threat
- S(A)
- Vars
- B(g);OGATE,XB(C)::QAR2(G)
- P(d);SBLOCK::R1(F)
Developed and maintained by Brian Stephenson.
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