MESON Chess Problem Database
Problem Display
PID: 17866 (2R4K/3Q2Np/1p6/3bbp2/p1pk3r/r7/3BR3/1B2N3 w - - 0 1)
Morice, Jean
Parallele 50, 1951
#2
8 + 10
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.Sf3#
- 1...Ra2
- 2.Sf3#
- 1...Rd3
- 2.Sc2#
- 1...Rf3
- 2.Sxf3#
- 1...Bh2
- 2.Sxf5#
- 2.Se6#
- 1...Bg3
- 2.Sxf5#
- 2.Se6#
- 1...Bf4
- 2.Sxf5#
- 2.Se6#
- 1...Bd6
- 2.Sxf5#
- 1...Bc7
- 2.Se6#
- 1...Bxg7+
- 2.Qxg7#
- 1...Bb8
- 2.Sxf5#
- 2.Se6#
- 1...c3
- 2.Sf3#
- 2.Be3#
- 1...f4
- 2.Re4#
- 1...b5
- 2.Qa7#
- 1...Ra1
- Tries
- 1.Bxf5?
- threat
- 2.Sc2#
- 1...Bxg7+
- 2.Qxg7#
- 1...Bc7
- 2.Se6#
- 1...Ra2
- 2.Sf3#
- 1...Re4
- 2.Rxe4#
- 1...Rc3!
- threat
- 1.Re3?
- threat
- 2.Sc2#
- 2.Sf3#
- 1...Bxg7+
- 2.Qxg7#
- 1...Bc7
- 2.Se6#
- 1...Ra2
- 2.Sf3#
- 1...Rc3
- 2.Sf3#
- 1...Rh3
- 2.Sc2#
- 1...Rf4
- 2.Sc2#
- 1...Bd6
- 2.Sc2#
- 2.Sxf5#
- 1...Rxe3!
- threat
- 1.Rxe5?
- threat
- 2.Rxd5#
- 2.Qxd5#
- 1...Rd3
- 2.Qxd5#
- 1...Kxe5!
- threat
- 1.Qd6?
- threat
- 2.Qxe5#
- 2.Qxb6#
- 1...Bxd6
- 2.Sxf5#
- 1...Rb3
- 2.Qxe5#
- 1...Re3
- 2.Qxb6#
- 1...Re4
- 2.Qxb6#
- 1...Rh6
- 2.Qxe5#
- 1...Bh2
- 2.Sxf5#
- 2.Se6#
- 2.Qxb6#
- 1...Bg3
- 2.Sxf5#
- 2.Se6#
- 2.Qxb6#
- 1...Bf4
- 2.Sxf5#
- 2.Se6#
- 2.Qxb6#
- 1...Bf6
- 2.Qxb6#
- 2.Qxf6#
- 1...b5
- 2.Qc5#
- 2.Qxe5#
- 2.Qb6#
- 1...Bxg7+!
- threat
- 1.Qc7?
- threat
- 2.Qxe5#
- 2.Qxb6#
- 1...Bxg7+
- 2.Qxg7#
- 1...Bh1
- 2.Qxe5#
- 2.Qxc4#
- 1...Bg2
- 2.Qxe5#
- 2.Qxc4#
- 1...Bf3
- 2.Qxe5#
- 2.Qxc4#
- 1...Be4
- 2.Qxc4#
- 1...Bc6
- 2.Qxe5#
- 1...Be6
- 2.Qxe5#
- 1...Bb7
- 2.Qxe5#
- 2.Qxc4#
- 1...Bf7
- 2.Qxe5#
- 1...Ba8
- 2.Qxe5#
- 2.Qxc4#
- 1...Bg8
- 2.Qxe5#
- 1...Rb3
- 2.Qxe5#
- 1...Re3
- 2.Qxb6#
- 1...Re4
- 2.Qxb6#
- 1...Rh6
- 2.Qxe5#
- 1...Bh2
- 2.Sxf5#
- 2.Qxb6#
- 1...Bg3
- 2.Sxf5#
- 2.Qxb6#
- 1...Bf4
- 2.Sxf5#
- 2.Qxb6#
- 1...Bd6
- 2.Sxf5#
- 1...Bf6
- 2.Qxb6#
- 1...b5
- 2.Qxe5#
- 2.Qb6#
- 2.Qc5#
- 2.Qa7#
- 1...Bxc7!
- threat
- 1.Bxf5?
- Keys
- 1.Bd3!
- threat
- 2.Rxc4#
- 1...Bxg7+
- 2.Qxg7#
- 1...Rxd3
- 2.Sc2#
- 1...cxd3
- 2.Sf3#
- 1...Bc7
- 2.Se6#
- 1...Rc3
- 2.Be3#
- 1...Bd6
- 2.Sxf5#
- 1...c3
- 2.Be3#
- 2.Rc4#
- 1...b5
- 2.Qa7#
- threat
- 1.Bd3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 4
- Sets
- R(a);N_GUARD::S(B)
- R(a);SBLOCK::S(B)
- R(a);N_GUARD::S(B),XR(a)
- B(g);N_PINS(F),N_SPINB(f)::S(F),XP(h)
- B(g);N_PINS(F)::S(F)
- B(g);CHECK,OGATE,XS(F)::QAB(E),XB(g)
- P(h);N_GUARD,S_CUTR(e)::R1(D)
- P(i);OGATEB::QAB(E)
- Tries
- Try
- B(A);XP(h)
- Threat
- S(B)
- Vars
- B(g);CHECK,OGATE,XS(F)::QAB(E),XB(g)
- B(g);N_PINS(F)::S(F)
- R(a);N_GUARD::S(B)
- R(e);N_GUARD::R1(D),XR(e)
- Refutation
- R(a);
- Try
- R(D);
- Threat
- DUALS(2)
- Vars
- B(g);CHECK,OGATE,XS(F)::QAB(E),XB(g)
- B(g);N_PINS(F)::S(F)
- R(a);::S(B)
- R(e);::S(B)
- Refutation
- R(a);XR(D)
- Try
- R(D);N_SPINS(F),XB(g)
- Threat
- DUALS(2)
- Vars
- R(a);::QAR1(E),XB(f)
- Refutation
- K(d);N_SPINB(f),S_FLIGHT,XR(D)
- Try
- Q(E);
- Threat
- DUALS(2)
- Vars
- B(g);N_PINS(F),N_SPINB(f),XQ(E)::S(F),XP(h)
- R(a);::QAB1(E),XB(g)
- R(a);::QAB(E),XP(i)
- R(e);::QAB(E),XP(i)
- R(e);::QAB1(E),XB(g)
- Refutation
- B(g);CHECK,XS(F)
- Try
- Q(E);N_PINB(f)
- Threat
- DUALS(2)
- Vars
- B(g);CHECK,OGATE,XS(F)::QAB(E),XB(g)
- B(f);N_GUARD::QAR1(E),XP(c)
- B(f);::QAB1(E),XB(g)
- R(a);::QAB1(E),XB(g)
- R(a);::QAB(E),XP(i)
- R(e);::QAB(E),XP(i)
- R(e);::QAB1(E),XB(g)
- B(g);N_PINS(F)::S(F),XP(h)
- B(g);::QAB(E),XP(i)
- Refutation
- B(g);N_PINS(F),XQ(E)
- Try
- Actual
- B(A);
- Threat
- R1(G),XP(c)
- Vars
- B(g);CHECK,OGATE,XS(F)::QAB(E),XB(g)
- R(a);SBLOCK,XB(A)::S(B)
- P(c);SBLOCK,XB(A)::S(B)
- B(g);N_PINS(F)::S(F)
- R(a);SBLOCK::B(C)
- B(g);N_PINS(F),N_SPINB(f)::S(F),XP(h)
- P(i);OGATEB::QAB(E)
Developed and maintained by Brian Stephenson.
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