MESON Chess Problem Database
Problem Display
PID: 261086 (2KQ4/1Np4b/7r/3pkpN1/4PRB1/6P1/3P4/1R6 w - - 0 1)
Melnichenko, Viktor Oleksandrovich
3rd HM., Neue Zurcher Zeitung, 2007
#2
10 + 6
| 6490 | yacpdb | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Kd4
- 2.Qxd5#
- 1...Rh1
- 2.Qh8#
- 1...Rh2
- 2.Qh8#
- 1...Rh3
- 2.Qh8#
- 1...Rh4
- 2.Qh8#
- 1...Rh5
- 2.Qh8#
- 1...Re6
- 2.Sf3#
- 1...Rf6
- 2.Qxd5#
- 1...fxg4
- 2.Qxd5#
- 1...Kd4
- Tries
- 1.Sf7+?
- 1...Kd4
- 2.Qxd5#
- 1...Ke6!
- 1...Kd4
- 1.Sc5?
- threat
- 2.Sf3#
- 1...Kd4
- 2.Qxd5#
- 1...dxe4
- 2.Sf7#
- 1...fxg4
- 2.Qxd5#
- 1...fxe4!
- threat
- 1.Bxf5?
- threat
- 2.Sf3#
- 1...Kd4
- 2.Qxd5#
- 1...dxe4
- 2.Sf7#
- 1...Bxf5+!
- threat
- 1.Rb4?
- threat
- 2.d4#
- 1...dxe4
- 2.Qd4#
- 1...fxe4
- 2.Sf7#
- 1...d4
- 2.Qxd4#
- 1...c5!
- threat
- 1.Rxf5+?
- 1...Kd4
- 2.Qxd5#
- 1...Bxf5+!
- 1...Kd4
- 1.Qe7+?
- 1...Re6
- 2.Sf3#
- 1...Kd4!
- 1...Re6
- 1.exd5?
- threat
- 2.Sf3#
- 2.Sf7#
- 2.Re1#
- 2.d4#
- 1...fxg4
- 2.Sf7#
- 2.d4#
- 1...Rh1
- 2.Sf3#
- 2.Sf7#
- 2.d4#
- 1...Rh2
- 2.Sf3#
- 2.Sf7#
- 2.d4#
- 1...Rf6
- 2.Sf3#
- 2.Re1#
- 2.d4#
- 1...Bg6
- 2.Sf3#
- 2.Re1#
- 2.d4#
- 1...Bg8
- 2.Sf3#
- 2.Re1#
- 2.d4#
- 1...c5
- 2.Sf3#
- 2.Sf7#
- 2.Re1#
- 1...Rd6!
- threat
- 1.exf5?
- threat
- 2.Sf3#
- 2.Sf7#
- 2.Re1#
- 2.d4#
- 1...Rh1
- 2.Sf3#
- 2.Sf7#
- 2.Qe7#
- 2.Qh8#
- 2.d4#
- 1...Rh2
- 2.Sf3#
- 2.Sf7#
- 2.Qe7#
- 2.Qh8#
- 2.d4#
- 1...Rf6
- 2.Sf3#
- 2.Re1#
- 2.d4#
- 1...Bg6
- 2.Sf3#
- 2.Re1#
- 2.Qe7#
- 2.d4#
- 1...Bg8
- 2.Sf3#
- 2.Re1#
- 2.d4#
- 1...d4
- 2.Sf3#
- 2.Sf7#
- 2.Re1#
- 2.Re4#
- 2.Qxd4#
- 1...c5
- 2.Sf3#
- 2.Sf7#
- 2.Re1#
- 1...Bxf5+!
- threat
- 1.Sf7+?
- Keys
- 1.Re1!
- threat
- 2.exd5#
- 2.exf5#
- 1...Kd4
- 2.Qxd5#
- 1...dxe4
- 2.d4#
- 1...fxe4
- 2.Sf3#
- 1...fxg4
- 2.Qxd5#
- 1...Rh1
- 2.Qh8#
- 1...Rh2
- 2.Qh8#
- 1...Rd6
- 2.exf5#
- 1...d4
- 2.exf5#
- threat
- 1.Re1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 5
- Sets
- K(b);N_GUARD,P_SPINP(a),S_FLIGHT::QAR1(J),XP(a)
- R(d);N_GUARD::QAB(J)
- R(d);SBLOCK::S(G)
- R(d);SBLOCK::QAR1(J),XP(a)
- P(c);XB(F)::QAR1(J),XP(a)
- Tries
- Try
- S(G);CHECK
- Vars
- K(b);N_GUARD,P_SPINP(a),S_FLIGHT::QAR1(J),XP(a)
- Refutation
- K(b);P-FLIGHT,P_SPINP(c)
- Try
- S(H);
- Threat
- S(G)
- Vars
- K(b);N_GUARD,P_SPINP(a),S_FLIGHT::QAR1(J),XP(a)
- P(a);XP(D)::S(G)
- P(c);XB(F)::QAR1(J),XP(a)
- Refutation
- P(c);XP(D)
- Try
- B(F);XP(c)
- Threat
- S(G)
- Vars
- K(b);N_GUARD,P_SPINP(a),S_FLIGHT::QAR1(J),XP(a)
- P(a);XP(D)::S(G)
- Refutation
- B(f);CHECK,XB(F)
- Try
- R(A);
- Threat
- P(B)
- Vars
- P(a);OGATE,XP(D)::QAB1(J)
- P(c);XP(D)::S(G)
- P(a);OGATE::QAB1(J),XP(a)
- Refutation
- P(e);
- Try
- R(E);CHECK,XP(c)
- Vars
- K(b);P_SPINP(a),S_FLIGHT::QAR1(J),XP(a)
- Refutation
- B(f);CHECK,XR(E)
- Try
- Q(J);CHECK
- Vars
- R(d);P_SPINR(d)::S(G)
- Refutation
- K(b);S_FLIGHT
- Try
- P(D);XP(a)
- Threat
- DUALS(4)
- Refutation
- R(d);
- Try
- P(D);XP(c)
- Threat
- DUALS(4)
- Refutation
- B(f);CHECK,XP(D)
- Try
- Actual
- R(A);
- Threat
- DUALS(2)
- Vars
- K(b);N_GUARD,P_SPINP(a),S_FLIGHT::QAR1(J),XP(a)
- P(a);P_SPINP(a),XP(D)::P(B)
- P(c);P_SPINP(c),XP(D)::S(G)
- P(c);XB(F)::QAR1(J),XP(a)
- R(d);N_GUARD::QAB(J)
- R(d);::R(A)+P(D),XP(c)
- P(a);::R(A)+P(D),XP(c)
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