MESON Chess Problem Database
Problem Display
PID: 261480 (8/1K1B4/2p1R3/3kp2r/N3p3/Np5q/1B1P4/3QR3 w - - 0 1)
Melnichenko, Viktor Oleksandrovich
Rudenko, Valentin Fedorovich
Neue Zurcher Zeitung, 2009
#2
9 + 7
| 6490 | yacpdb | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Qg2
- 2.Qxb3#
- 1...Qg4
- 2.Qxb3#
- 1...Qf5
- 2.Qxb3#
- 1...Qh1
- 2.Qxb3#
- 1...Qh2
- 2.Qxb3#
- 1...Qc3
- 2.dxc3#
- 1...Qe3
- 2.dxe3#
- 1...Qh4
- 2.Qxb3#
- 1...c5
- 2.Sb6#
- 1...Qg2
- Tries
- 1.Kc7?
- threat
- 2.Rd6#
- 1...Qxe6
- 2.Qxb3#
- 1...Rh6
- 2.Rxe5#
- 1...e3!
- threat
- 1.Qc2?
- threat
- 2.Sb6#
- 2.Qxe4#
- 2.Qc4#
- 2.Qc5#
- 2.Qxc6#
- 1...Qxe6
- 2.Qc5#
- 1...Qc3
- 2.Qxe4#
- 1...Qf1
- 2.Sb6#
- 2.Qxe4#
- 2.Qc5#
- 2.Qxc6#
- 1...Qg2
- 2.Sb6#
- 2.Qxb3#
- 2.Qc4#
- 2.Qc5#
- 2.Qxc6#
- 1...Qg4
- 2.Sb6#
- 2.Qxb3#
- 2.Qc4#
- 2.Qc5#
- 2.Qxc6#
- 1...Qf5
- 2.Sb6#
- 2.Qxb3#
- 2.Qc4#
- 2.Qc5#
- 2.Qxc6#
- 1...Qh1
- 2.Sb6#
- 2.Qxb3#
- 2.Qc4#
- 2.Qc5#
- 2.Qxc6#
- 1...Qd3
- 2.Sb6#
- 2.Qc5#
- 2.Qxc6#
- 1...Qe3
- 2.Qc4#
- 2.Qxc6#
- 1...Qf3
- 2.Sb6#
- 2.Qc4#
- 2.Qc5#
- 2.Qxc6#
- 1...Qh4
- 2.Sb6#
- 2.Qxb3#
- 2.Qc4#
- 2.Qc5#
- 2.Qxc6#
- 1...Rh4
- 2.Sb6#
- 2.Qc4#
- 2.Qc5#
- 2.Qxc6#
- 1...e3
- 2.Sb6#
- 2.Qd3#
- 2.Qc4#
- 2.Qxc6#
- 1...c5
- 2.Sb6#
- 2.Qxe4#
- 2.Qc4#
- 2.Qxc5#
- 1...bxc2!
- threat
- 1.Qg4?
- threat
- 2.Bxc6#
- 2.Qxe4#
- 1...Qc3
- 2.Qxe4#
- 1...Qg2
- 2.Bxc6#
- 1...Qh1
- 2.Bxc6#
- 1...Qd3
- 2.Bxc6#
- 1...Qe3
- 2.Bxc6#
- 1...Qf3
- 2.Bxc6#
- 1...Qh4
- 2.Bxc6#
- 1...Rh4
- 2.Bxc6#
- 1...Rf5
- 2.Qxe4#
- 1...Rh7
- 2.Qxe4#
- 1...e3
- 2.Bxc6#
- 2.Qc4#
- 1...c5
- 2.Sb6#
- 2.Bc6#
- 2.Qxe4#
- 1...Qxg4!
- threat
- 1.Qc1?
- threat
- 2.Sb6#
- 2.Qc4#
- 2.Qc5#
- 2.Qxc6#
- 1...Qxe6
- 2.Qc5#
- 1...e3
- 2.Qc4#
- 2.Qxc6#
- 1...Qf1
- 2.Sb6#
- 2.Qc5#
- 2.Qxc6#
- 1...Qd3
- 2.Sb6#
- 2.Qc5#
- 2.Qxc6#
- 1...Qe3
- 2.Qc4#
- 2.Qxc6#
- 1...c5
- 2.Sb6#
- 2.Qc4#
- 2.Qxc5#
- 1...Qc3!
- threat
- 1.d3?
- threat
- 2.Qxb3#
- 2.dxe4#
- 1...Qxe6
- 2.dxe4#
- 1...exd3
- 2.Qxb3#
- 1...Qe3
- 2.Qxb3#
- 1...e3
- 2.Qxb3#
- 1...c5
- 2.Sb6#
- 2.dxe4#
- 1...Qxd3!
- threat
- 1.Kc7?
- Keys
- 1.d4!
- threat
- 2.Sb6#
- 1...Qxe6
- 2.dxe5#
- 1...exd4
- 2.Qxd4#
- 1...exd4 ep
- 2.Qxb3#
- 1...e3
- 2.Sc3#
- threat
- 1.d4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 9
- Sets
- Q(b);N_GUARD::QAB(A),XP(a)
- Q(b);OGATE::QAR(A)+P(D),XQ(b)
- P(g);SBLOCK::S(F)
- Tries
- Try
- K(H);P-FLIGHT
- Threat
- R1(G)
- Vars
- Q(b);N_GUARD,XR(G)::QAB(A),XP(a)
- R(f);N_GUARD::R1(G),XP(e)
- Refutation
- P(c);
- Try
- Q(A);
- Threat
- DUALS(5)
- Vars
- Q(b);XR(G)::QAR1(A)
- Q(b);::QAB1(A),XP(c)
- Refutation
- P(a);XQ(A)
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- Q(b);::QAB1(A),XP(c)
- Q(b);::B(I),XP(g)
- R(f);::B(I),XP(g)
- R(f);::QAB1(A),XP(c)
- R(f);P_PINB(I)::QAB1(A),XP(c)
- Refutation
- Q(b);XQ(A)
- Try
- Q(A);
- Threat
- DUALS(4)
- Vars
- Q(b);XR(G)::QAR1(A)
- Refutation
- Q(b);
- Try
- P(D);
- Threat
- DUALS(2)
- Vars
- Q(b);XR(G)::QAR(A)+P(D)DCHECK,XP(c)
- P(c);P_SPINP(c),XP(D)::QAB(A),XP(a)
- Q(b);::QAB(A),XP(a)
- P(c);::QAB(A),XP(a)
- Refutation
- Q(b);P_SPINQ(b),XP(D)
- Try
- Actual
- P(D);
- Threat
- S(F)
- Vars
- Q(b);N_GUARD,XR(G)::QAR(A)+P(D),XP(e)
- P(e);OGATE,P_SPINP(e),XP(D)::QAR1(A),XP(e)
- P(c);EP,P_SPINP(c),S_CUTQ(b),XP(D)::QAB(A),XP(a)
- P(c);S_CUTQ(b)::S(F)
Developed and maintained by Brian Stephenson.
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