MESON Chess Problem Database
Problem Display
PID: 108916 (3N1Q2/2KR1pqr/4N1B1/3pk1B1/6R1/b3P3/7p/8 w - - 0 1)
Loustau, Jean-Marc
7th HM., Mat, 1985
#2
9 + 7
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Bc1
- 2.Qd6#
- 1...Bb2
- 2.Qd6#
- 1...Bd6+
- 2.Qxd6#
- 1...d4
- 2.Re4#
- 2.exd4#
- 1...fxe6
- 2.Sc6#
- 2.Bf4#
- 2.Qf4#
- 1...fxg6
- 2.Qf4#
- 1...f5
- 2.Qxf5#
- 1...f6
- 2.Bf4#
- 1...Bc1
- Tries
- 1.Sf4?
- threat
- 2.Sd3#
- 2.Sc6#
- 2.Rxd5#
- 1...Bd6+
- 2.Qxd6#
- 1...fxg6
- 2.Sd3#
- 1...f5
- 2.Sd3#
- 2.Qxf5#
- 1...h1Q
- 2.Sd3#
- 2.Sc6#
- 1...h1B
- 2.Sd3#
- 2.Sc6#
- 1...Qf6
- 2.Sd3#
- 2.Rxd5#
- 1...d4
- 2.Sd3#
- 2.Sc6#
- 2.Rd5#
- 2.exd4#
- 1...f6
- 2.Sd3#
- 2.Sc6#
- 1...Qxg6!
- threat
- 1.Sxg7?
- threat
- 2.Sc6#
- 2.Sxf7#
- 1...Bd6+
- 2.Qxd6#
- 1...fxg6
- 2.Sc6#
- 2.Sf7#
- 2.Bf6#
- 2.Qf4#
- 2.Qf6#
- 1...f5
- 2.Sc6#
- 2.Sf7#
- 2.Bf6#
- 2.Qxf5#
- 2.Qf6#
- 1...f6
- 2.Sc6#
- 2.Sf7#
- 2.Bf4#
- 2.Bxf6#
- 2.Qxf6#
- 1...Rxg7!
- threat
- 1.Qb4?
- threat
- 2.Qd4#
- 2.Qf4#
- 1...Qxg6
- 2.Qf4#
- 1...fxg6
- 2.Qf4#
- 1...Qf6
- 2.Qd4#
- 1...Bb2
- 2.Qd6#
- 2.Qf4#
- 1...d4
- 2.Re4#
- 2.Qxd4#
- 2.exd4#
- 1...Bxb4!
- threat
- 1.Qc5?
- threat
- 2.Re4#
- 2.Rxd5#
- 2.Qd4#
- 2.Qxd5#
- 1...Qxg6
- 2.Rxd5#
- 2.Qxd5#
- 1...fxe6
- 2.Sc6#
- 2.Re4#
- 2.Qd4#
- 1...fxg6
- 2.Qxd5#
- 1...h1Q
- 2.Qd4#
- 1...h1B
- 2.Qd4#
- 1...Rh4
- 2.Rxd5#
- 2.Qd4#
- 2.Qxd5#
- 1...Bb2
- 2.Re4#
- 2.Rxd5#
- 2.Qd6#
- 2.Qxd5#
- 1...f5
- 2.Qd4#
- 2.Qxd5#
- 1...f6
- 2.Bf4#
- 2.Re4#
- 2.Qd4#
- 2.Qxd5#
- 1...Bxc5!
- threat
- 1.Qxg7+?
- 1...f6
- 2.Bf4#
- 2.Bxf6#
- 2.Qxf6#
- 1...Rxg7!
- 1...f6
- 1.Sf4?
- Keys
- 1.e4!
- threat
- 2.Rxd5#
- 1...Bd6+
- 2.Qxd6#
- 1...dxe4
- 2.Rxe4#
- 1...fxe6
- 2.Sc6#
- 1...fxg6
- 2.Qf4#
- 1...d4
- 2.Rd5#
- 1...f5
- 2.Qxf5#
- 1...f6
- 2.Bf4#
- threat
- 1.e4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 2
- Sets
- B(b);N_GUARD::QAB1(I)
- B(b);CHECK,N_GUARD::QAB1(I),XB(b)
- P(e);OGATE,P_PINR(G),XB(E)::QAB1(I)
- P(e);OGATE,P_PINR(G)::QAR1(I),XP(e)
- P(e);P_PINR(G)::B(C)
- Tries
- Try
- S(D);
- Threat
- DUALS(3)
- Vars
- B(b);CHECK,N_GUARD::QAB1(I),XB(b)
- P(e);P_PINR(G),XB(E)::S(D)
- Refutation
- Q(f);XB(E)
- Try
- S(D);XQ(f)
- Threat
- DUALS(2)
- Vars
- B(b);CHECK,N_GUARD::QAB1(I),XB(b)
- Refutation
- R(g);XS(D)
- Try
- Q(I);
- Threat
- DUALS(2)
- Vars
- Q(f);XB(E)::QAB1(I)
- P(e);P_PINR(G),XB(E)::QAB1(I)
- Q(f);::QAB1(I)
- Refutation
- B(b);XQ(I)
- Try
- Q(I);P_PINP(c)
- Threat
- DUALS(4)
- Vars
- P(e);P_PINR(G),XB(E)::QAR1(I),XP(c)
- P(a);::QAB1(I)
- Refutation
- B(b);N_SPINP(c),XQ(I)
- Try
- Q(I);CHECK,XQ(f)
- Refutation
- R(g);XQ(I)
- Try
- Actual
- P(A);
- Threat
- R1(G),XP(c)
- Vars
- B(b);CHECK,N_GUARD::QAB1(I),XB(b)
- P(c);OGATE,XP(A)::R1(B),XP(c)
- P(e);P_PINR(G),SBLOCK,XS(D)::S(H)
- P(e);OGATE,P_PINR(G),XB(E)::QAB1(I)
- P(c);::R1(G)
- P(e);OGATE,P_PINR(G)::QAR1(I),XP(e)
- P(e);P_PINR(G)::B(C)
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