MESON Chess Problem Database
Problem Display
PID: 86500 (1b1rb1n1/3B2Q1/8/3pR3/RN1kN2p/1P6/3P1P2/1n5K w - - 0 1)
Melnichenko, Viktor Oleksandrovich
Sushkov, Yuri Akimovich
64 Shakhmatnoe obozrenie, 1977
#2
10 + 8
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Sc3
- 2.dxc3#
- 1...dxe4
- 2.Rd5#
- 1...Sc3
- Tries
- 1.Sc5?
- threat
- 2.Sbd3#
- 2.Sba6#
- 2.Se6#
- 2.Rxd5#
- 1...Bxe5
- 2.Sbd3#
- 2.Sba6#
- 1...Bxd7
- 2.Rxd5#
- 1...Sxd2
- 2.Rxd5#
- 1...Sf6
- 2.Sbd3#
- 2.Rxd5#
- 1...Bf7
- 2.Sbd3#
- 2.Sba6#
- 2.Rxd5#
- 1...Sa3
- 2.Se6#
- 2.Rxd5#
- 1...Sc3
- 2.Se6#
- 2.Rxd5#
- 1...Kxc5!
- threat
- 1.Bb5?
- threat
- 2.Sa2#
- 2.Sc2#
- 2.Sd3#
- 2.Sxd5#
- 2.Sa6#
- 2.Sc6#
- 1...Bxe5
- 2.Sa2#
- 2.Sc2#
- 2.Sd3#
- 2.Sa6#
- 2.Sc6#
- 1...Sxd2
- 2.Sc2#
- 2.Sc6#
- 1...dxe4
- 2.Sa2#
- 2.Sc2#
- 2.Sd3#
- 2.Sa6#
- 2.Sc6#
- 2.Rd5#
- 1...Sf6
- 2.Sd3#
- 2.Sc6#
- 1...Rc8
- 2.Sc2#
- 2.Sc6#
- 1...Bd6
- 2.Sc2#
- 2.Sc6#
- 1...Bc6
- 2.Sa2#
- 2.Sc2#
- 2.Sd3#
- 2.Sxd5#
- 2.Sa6#
- 2.Sxc6#
- 1...Sa3
- 2.Sc2#
- 2.Sc6#
- 1...Sc3
- 2.Sc2#
- 2.Sc6#
- 2.dxc3#
- 1...Bxb5!
- threat
- 1.Bf5?
- threat
- 2.Rxd5#
- 1...Bxe5
- 2.Qa7#
- 1...dxe4
- 2.Rd5#
- 1...Sf6!
- threat
- 1.Rf5+?
- 1...Kxe4
- 2.d3#
- 2.f3#
- 1...Be5
- 2.Qxe5#
- 1...Sf6!
- 1...Kxe4
- 1.Re6+?
- 1...Be5
- 2.Qxe5#
- 1...Sf6!
- 1...Be5
- 1.Re7+?
- 1...Be5
- 2.Qxe5#
- 1...Sf6!
- 1...Be5
- 1.Rxe8+?
- 1...Be5
- 2.Qxe5#
- 1...Sf6!
- 1...Be5
- 1.Qg3?
- threat
- 2.Sa2#
- 2.Sc2#
- 2.Sd3#
- 2.Sxd5#
- 2.Sa6#
- 2.Sc6#
- 1...Bxe5
- 2.Sa2#
- 2.Sc2#
- 2.Sd3#
- 2.Sa6#
- 2.Sc6#
- 2.Qd3#
- 2.Qe3#
- 1...Bxd7
- 2.Sc2#
- 2.Sc6#
- 1...Sxd2
- 2.Sc2#
- 2.Sc6#
- 2.Qc3#
- 1...dxe4
- 2.Sa2#
- 2.Sc2#
- 2.Sd3#
- 2.Sa6#
- 2.Sc6#
- 2.Rd5#
- 1...Rc8
- 2.Sc2#
- 2.Sc6#
- 1...Bd6
- 2.Sc2#
- 2.Sc6#
- 1...Sa3
- 2.Sc2#
- 2.Sc6#
- 2.Qc3#
- 1...Sc3
- 2.Sc2#
- 2.Sc6#
- 2.Qxc3#
- 2.dxc3#
- 1...hxg3!
- threat
- 1.d3?
- threat
- 2.Rxd5#
- 1...dxe4
- 2.Rd5#
- 1...Bxe5!
- threat
- 1.f3?
- threat
- 2.Rxd5#
- 1...Bxe5
- 2.Qg1#
- 1...dxe4
- 2.Rd5#
- 1...Sxd2!
- threat
- 1.f4?
- threat
- 2.Qg1#
- 1...Bxe5
- 2.Qxe5#
- 1...dxe4
- 2.Rd5#
- 1...Bg6!
- threat
- 1.Sc5?
- Keys
- 1.Qg1!
- threat
- 2.f4#
- 1...Kxe5
- 2.Sd3#
- 1...Bxe5
- 2.f3#
- 1...dxe4
- 2.Rd5#
- threat
- 1.Qg1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 1
- Sets
- S(a);OGATE::P(B),XS(a)
- P(d);SBLOCK,XS(G)::QAB(J)+R(H),DCHECK
- Tries
- Try
- S(G);
- Threat
- DUALS(4)
- Vars
- B(g);XB(I)::QAB(J)+R(H),DCHECK,XP(d)
- S(a);XP(B)::QAB(J)+R(H),DCHECK,XP(d)
- Refutation
- K(b);P_SPINP(d),S_FLIGHT,XS(G)
- Try
- B(I);
- Threat
- DUALS(6)
- Refutation
- B(g);XB(I)
- Try
- B(I);
- Threat
- QAB(J)+R(H),DCHECK,XP(d)
- Vars
- B(e);N_GUARD,P_SPINB(e),SBLOCK,XR(H)::QAB(J)
- P(d);XS(G)::QAB(J)+R(H),DCHECK
- Refutation
- S(h);
- Try
- R(H);CHECK
- Vars
- B(e);N_GUARD,P_SPINB(e)::QAB1(J),XB(e)
- Refutation
- S(h);P_SPINS(h)
- Try
- R(H);CHECK
- Vars
- B(e);N_GUARD,P_SPINB(e)::QAB1(J),XB(e)
- Refutation
- S(h);P_SPINS(h)
- Try
- R(H);CHECK
- Vars
- B(e);N_GUARD,P_SPINB(e)::QAB1(J),XB(e)
- Refutation
- S(h);P_SPINS(h)
- Try
- R(H);CHECK,XB(g)
- Vars
- B(e);N_GUARD,P_SPINB(e)::QAB1(J),XB(e)
- Refutation
- S(h);P_SPINS(h)
- Try
- Q(J);
- Threat
- DUALS(6)
- Refutation
- P(c);XQ(J)
- Try
- P(B);
- Threat
- QAB(J)+R(H),DCHECK,XP(d)
- Vars
- P(d);XS(G)::QAB(J)+R(H),DCHECK
- Refutation
- B(e);P_SPINB(e),XR(H)
- Try
- P(C);
- Threat
- QAB(J)+R(H),DCHECK,XP(d)
- Vars
- B(e);P_SPINB(e),SBLOCK,XR(H)::QAB(J)
- P(d);XS(G)::QAB(J)+R(H),DCHECK
- Refutation
- S(a);XP(B)
- Try
- P(C);
- Threat
- QAB(J)
- Vars
- B(e);OGATE,P_SPINB(e),XR(H)::QAB1(J),XB(e)
- P(d);SBLOCK,XS(G)::QAB(J)+R(H),DCHECK
- Refutation
- B(g);
- Try
- Actual
- Q(J);
- Threat
- QAB(J)+P(C)
- Vars
- K(b);S_FLIGHT,XR(H)::S(F)
- B(e);SBLOCK,XR(H)::QAB(J)+P(C)
- P(d);SBLOCK,XS(G)::R1(H)
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