MESON Chess Problem Database
Problem Display
PID: 65268 (1q1Rn3/2P1R1p1/P1pn2B1/2PkN1K1/PbpP1pp1/2p1B3/b2Q4/5r2 w - - 0 1)
Doukhan, Gerard
2nd Prize, diagrammes, 1991
#2
12 + 13
| 4827 | FIDE Album (1989-1991) | 1997 |
| 15652 | Tehtavaniekka | 2012 |
SOLUTION
- SOUND
- Sets
- 1...Sf6
- 2.Rxd6#
- 1...Sxc7
- 2.Rxd6#
- 1...Sf6
- Tries
- 1.Sd3?
- threat
- 2.Be4#
- 2.Bf7#
- 2.Re5#
- 1...Qxd8
- 2.Sxb4#
- 1...Sxc7
- 2.Be4#
- 2.Re5#
- 2.Rxd6#
- 1...cxd3
- 2.Bf7#
- 2.Qxa2#
- 1...Qc8
- 2.Sxb4#
- 2.Be4#
- 2.Re5#
- 1...Sf6
- 2.Bf7#
- 2.Re5#
- 2.Rxd6#
- 1...fxe3!
- threat
- 1.Sf3?
- threat
- 2.Be4#
- 2.Bf7#
- 2.Re5#
- 1...Sxc7
- 2.Be4#
- 2.Re5#
- 2.Rxd6#
- 1...Qc8
- 2.Be4#
- 2.Re5#
- 1...Bb1
- 2.Bf7#
- 2.Re5#
- 1...Sf6
- 2.Bf7#
- 2.Re5#
- 2.Rxd6#
- 1...Qxd8!
- threat
- 1.Sxc4?
- threat
- 2.Bf7#
- 1...Kxc4
- 2.Qxa2#
- 1...Qxd8
- 2.Sb6#
- 1...fxe3
- 2.Sxe3#
- 1...Qc8
- 2.Sb6#
- 1...Sxc7!
- threat
- 1.Sxg4?
- threat
- 2.Be4#
- 2.Bf7#
- 2.Re5#
- 1...Sxc7
- 2.Be4#
- 2.Re5#
- 2.Rxd6#
- 1...fxe3
- 2.Sxe3#
- 2.Be4#
- 2.Re5#
- 1...Qc8
- 2.Be4#
- 2.Re5#
- 1...Bb1
- 2.Bf7#
- 2.Re5#
- 1...Sf6
- 2.Bf7#
- 2.Re5#
- 2.Rxd6#
- 1...Qxd8!
- threat
- 1.Sxc6?
- threat
- 2.Be4#
- 1...Kxc6
- 2.d5#
- 1...Qxd8
- 2.Sxb4#
- 1...Sf6
- 2.Rxd6#
- 1...Bb1!
- threat
- 1.Sf7?
- threat
- 2.Be4#
- 2.Re5#
- 1...Bb1
- 2.Re5#
- 1...Sf6
- 2.Re5#
- 2.Rxd6#
- 1...Qxd8!
- threat
- 1.Qc2?
- threat
- 2.Be4#
- 2.Bf7#
- 2.Qe4#
- 1...Sxc7
- 2.Be4#
- 2.Rxd6#
- 2.Qe4#
- 1...fxe3
- 2.Qe4#
- 1...Qc8
- 2.Be4#
- 2.Qe4#
- 1...Bb1
- 2.Be4#
- 2.Bf7#
- 1...Sf6
- 2.Bf7#
- 2.Rxd6#
- 1...Qxd8!
- threat
- 1.c8Q?
- threat
- 2.Qe6#
- 2.Qxc6#
- 1...Qb5
- 2.Qe6#
- 1...Qc7
- 2.Qe6#
- 1...Qb6
- 2.Qe6#
- 1...Qb7
- 2.Qe6#
- 1...Qa8
- 2.Qe6#
- 1...Sc7
- 2.Rxd6#
- 1...Qxc8!
- threat
- 1.c8B?
- threat
- 2.Be6#
- 1...Sc7
- 2.Rxd6#
- 1...Qxc8!
- threat
- 1.Sd3?
- Keys
- 1.Sd7!
- threat
- 2.Re5#
- 1...Se4+
- 2.Bxe4#
- 1...Sf7+
- 2.Bxf7#
- 1...Qxd8
- 2.Sb6#
- threat
- 1.Sd7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 2
- Sets
- S(m);N_GUARD::R1(L),XS(j)
- S(m);N_GUARD,XP(J)::R1(L),XS(j)
- Tries
- Try
- S(F);
- Threat
- DUALS(3)
- Vars
- Q(l);N_GUARD,N_SPINS(j),P_PINR(K),XR(L)::S(F),XB(d)
- Refutation
- P(f);XB(B)
- Try
- S(F);
- Threat
- DUALS(3)
- Refutation
- Q(l);N_SPINS(j),P_PINR(K),XR(L)
- Try
- S(F);XP(e)
- Threat
- B(I)
- Vars
- K(h);N_SPINS(j),OGATEB,S_FLIGHT,XS(F)::QAB(A),XB(b)
- Q(l);N_GUARD,N_SPINS(j),P_PINR(K),XR(L)::S(F)
- P(f);XB(B)::S(F),XP(f)
- Q(l);N_GUARD::S(F)
- Refutation
- S(m);XP(J)
- Try
- S(F);XP(g)
- Threat
- DUALS(3)
- Refutation
- Q(l);N_SPINS(j),P_PINR(K),XR(L)
- Try
- S(F);XP(i)
- Threat
- B(I)
- Vars
- K(h);N_SPINS(j),OGATE,S_FLIGHT,XS(F)::P(D)
- Q(l);N_GUARD,N_SPINS(j),P_PINR(K),XR(L)::S(F),XB(d)
- S(m);N_GUARD::R1(L),XS(j)
- Refutation
- B(b);
- Try
- S(F);
- Threat
- DUALS(2)
- Vars
- B(b);::R1(K)
- Refutation
- Q(l);N_SPINS(j),P_PINR(K),XR(L)
- Try
- Q(A);
- Threat
- DUALS(3)
- Vars
- P(f);XB(B)::QAB1(A)
- Refutation
- Q(l);N_SPINS(j),P_PINR(K),XR(L)
- Try
- P(J);
- Threat
- DUALS(2)
- Vars
- Q(l);::QAB1(J)
- S(m);N_GUARD,S_CUTQ(l)::R1(L),XS(j)
- Refutation
- Q(l);XQ(J)
- Try
- P(J);
- Threat
- B(J)
- Vars
- S(m);N_GUARD,S_CUTQ(l)::R1(L),XS(j)
- Refutation
- Q(l);XB(J)
- Try
- Actual
- S(F);N_PINS(j)
- Threat
- R1(K)
- Vars
- S(j);CHECK,N_GUARD::B(I),XS(j)
- Q(l);N_GUARD,P_PINR(K),XR(L)::S(F)
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