MESON Chess Problem Database
Problem Display
PID: 166299 (5bb1/1K4p1/PP2P1p1/pNkN2Br/r1PRP3/P2p3p/8/2Q1n3 w - - 0 1)
Tkachenko, Sergiy Ivanovich
Vasilenko, Anatoly Grigorovich
StrateGems, 2016
#2
12 + 11
SOLUTION
- SOUND
- Sets
- 1...Rxa3
- 2.Qxa3#
- 1...Rxc4
- 2.Qxc4#
- 1...Be7
- 2.Bxe7#
- 1...Rxa3
- Tries
- 1.Sdc3?
- threat
- 2.Sxa4#
- 1...Rxa3
- 2.Qxa3#
- 1...Rxc4
- 2.Rd5#
- 1...Rb4!
- threat
- 1.Sf4?
- threat
- 2.Rd5#
- 1...Rxa3
- 2.Qxa3#
- 1...Bxe6
- 2.Sxe6#
- 1...Sc2
- 2.Sxd3#
- 1...Rxg5!
- threat
- 1.Sf6?
- threat
- 2.Sd7#
- 2.Rd5#
- 1...Rxa3
- 2.Qxa3#
- 1...Rxc4
- 2.Rd5#
- 2.Qxc4#
- 1...Rxg5
- 2.Sd7#
- 2.Qxg5#
- 1...gxf6
- 2.Rd5#
- 1...Sc2
- 2.Sd7#
- 1...Bxe6!
- threat
- 1.Sdc7?
- threat
- 2.Rd5#
- 1...Rxa3
- 2.Qxa3#
- 1...Rxg5
- 2.Qxg5#
- 1...Bxe6
- 2.Sxe6#
- 1...Sc2!
- threat
- 1.Qf4?
- threat
- 2.Qc7#
- 2.Qxf8#
- 1...Bd6
- 2.Qxd6#
- 1...Be7
- 2.Bxe7#
- 2.Qc7#
- 1...Bf7
- 2.Qc7#
- 1...Rxc4!
- threat
- 1.Sdc3?
- Keys
- 1.e7!
- threat
- 2.exf8Q#
- 2.exf8B#
- 1...Bxd5+
- 2.Rxd5#
- 1...Rxa3
- 2.Qxa3#
- 2.exf8Q#
- 2.exf8B#
- 1...Rxc4
- 2.Qxc4#
- 1...Rxg5
- 2.exf8Q#
- 2.exf8B#
- 1...Bxe7
- 2.Bxe7#
- 1...Sc2
- 2.exf8Q#
- 2.exf8B#
- 1...Rb4
- 2.exf8Q#
- 2.exf8B#
- 1...Rh4
- 2.exf8Q#
- 2.exf8B#
- 1...Rh6
- 2.exf8Q#
- 2.exf8B#
- 1...Rh7
- 2.exf8Q#
- 2.exf8B#
- 1...Rh8
- 2.exf8Q#
- 2.exf8B#
- 1...Be6
- 2.exf8Q#
- 2.exf8B#
- 1...Bf7
- 2.exf8Q#
- 2.exf8B#
- 1...Bh7
- 2.exf8Q#
- 2.exf8B#
- 1...Sg2
- 2.exf8Q#
- 2.exf8B#
- 1...Sf3
- 2.exf8Q#
- 2.exf8B#
- 1...d2
- 2.exf8Q#
- 2.exf8B#
- 1...h2
- 2.exf8Q#
- 2.exf8B#
- threat
- 1.e7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 1
- Sets
- R(d);OGATE,XP(B)::QAB(A),XR(d)
- R(d);OGATE,P_SPINR(d),XP(C)::QAR1(A),XR(d)
- B(j);N_GUARD::B(H),XB(j)
- Tries
- Try
- S(G);
- Threat
- S(G),XR(d)
- Vars
- R(d);OGATE,XP(B)::QAB(A),XR(d)
- R(d);SBLOCK,XP(C)::R1(D)
- Refutation
- R(d);
- Try
- S(G);
- Threat
- R1(D)
- Vars
- R(d);OGATE,XP(B)::QAB(A),XR(d)
- B(k);XP(K)::S(G),XB(k)
- S(a);N_GUARD::S(G),XP(b)
- Refutation
- R(g);XB(H)
- Try
- S(G);
- Threat
- DUALS(2)
- Vars
- R(d);OGATE,XP(B)::QAB(A),XR(d)
- P(i);XS(G)::R1(D)
- S(a);::S(G)
- Refutation
- B(k);XP(K)
- Try
- S(G);
- Threat
- R1(D)
- Vars
- R(d);OGATE,XP(B)::QAB(A),XR(d)
- R(g);OGATE,XB(H)::QAR(A),XR(g)
- B(k);XP(K)::S(G),XB(k)
- Refutation
- S(a);
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- B(j);N_GUARD::QAB1(A),XB(j)
- B(k);::QAR2(A)
- Refutation
- R(d);XP(C)
- Try
- Actual
- P(K);
- Threat
- PXB(j)=Q
- Vars
- B(k);CHECK,OGATE,XS(G)::R1(D),XB(k)
- R(d);OGATE,P_SPINR(d),XP(C)::QAR1(A),XR(d)
- R(g);XB(H)::PXB(j)=Q
- B(j);OGATE,XP(K)::B(H),XB(j)
- S(a);::PXB(j)=Q
- R(d);::PXB(j)=Q
- R(g);::PXB(j)=Q
- B(k);::PXB(j)=Q
- P(b);::PXB(j)=Q
- P(c);::PXB(j)=Q
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