MESON Chess Problem Database
Problem Display
PID: 28605 (6B1/3R4/r1p4b/qp3pp1/r2pk3/5NQ1/b1PR1P2/4K3 w - - 0 1)
Shire, David J
British Chess Magazine, 1978
#2
8 + 11
| 3256 | David Shire Selected Chess Problems | 2001 |
| 133 | The Problemist Supplement | 2017 |
SOLUTION
- SOUND
- Sets
- 1...Qxd2+
- 2.Sxd2#
- 1...Qb6
- 2.Re2#
- 1...Qc7
- 2.Re2#
- 1...Qd8
- 2.Re2#
- 1...Ra3
- 2.Rxd4#
- 1...Rb4
- 2.Re2#
- 1...Rc4
- 2.Re7#
- 1...Bb1
- 2.Re7#
- 1...Bc4
- 2.Rxd4#
- 1...Bg7
- 2.Sxg5#
- 1...Bf8
- 2.Sxg5#
- 1...d3
- 2.cxd3#
- 1...b4
- 2.Re2#
- 2.R2xd4#
- 2.R7xd4#
- 1...f4
- 2.Bh7#
- 1...Qxd2+
- Tries
- 1.Bc4?
- threat
- 2.Bd3#
- 2.Rxd4#
- 2.Re7#
- 1...Qxd2+
- 2.Sxd2#
- 1...Bxc4
- 2.Rxd4#
- 1...bxc4
- 2.Rxd4#
- 1...f4
- 2.Bd3#
- 1...Qc3
- 2.Re7#
- 1...Qb4
- 2.Bd3#
- 2.Rxd4#
- 1...Qb6
- 2.Bd3#
- 2.Re2#
- 2.Re7#
- 1...Qc7
- 2.Bd3#
- 2.Re2#
- 2.R2xd4#
- 2.R7xd4#
- 1...Qd8
- 2.Bd3#
- 2.Re2#
- 2.R2xd4#
- 1...Ra3
- 2.Rxd4#
- 2.Re7#
- 1...Ra7
- 2.Bd3#
- 2.Rxd4#
- 1...Bg7
- 2.Sxg5#
- 2.Bd3#
- 1...Bf8
- 2.Sxg5#
- 2.Bd3#
- 2.Rxd4#
- 1...d3
- 2.Bxd3#
- 2.Rd4#
- 2.Re7#
- 2.cxd3#
- 1...b4
- 2.Bd3#
- 2.Re2#
- 2.R2xd4#
- 2.R7xd4#
- 1...c5
- 2.Bd3#
- 1...Rxc4!
- threat
- 1.Bh7?
- threat
- 2.Qg4#
- 1...Qxd2+
- 2.Sxd2#
- 1...Qc7
- 2.Re2#
- 1...g4!
- threat
- 1.Qg4+?
- 1...f4
- 2.Bh7#
- 1...fxg4!
- 1...f4
- 1.Bc4?
- Keys
- 1.c4!
- threat
- 2.Rxd4#
- 2.Re7#
- 1...Qxd2+
- 2.Sxd2#
- 1...Rxc4
- 2.Re7#
- 1...Bxc4
- 2.Rxd4#
- 1...bxc4
- 2.Rxd4#
- 1...dxc4 ep
- 2.Re2#
- 1...f4
- 2.Bh7#
- 1...Qc3
- 2.Re7#
- 1...Qb4
- 2.Rxd4#
- 1...Qb6
- 2.Re7#
- 1...Qc7
- 2.R2xd4#
- 2.R7xd4#
- 1...Qd8
- 2.R2xd4#
- 1...Ra7
- 2.Rxd4#
- 1...Bg7
- 2.Sxg5#
- 1...Bf8
- 2.Sxg5#
- 2.Rxd4#
- 1...d3
- 2.Rd4#
- 2.Re7#
- 1...b4
- 2.R2xd4#
- 2.R7xd4#
- 1...c5
- 2.Bd5#
- threat
- 1.c4!
This is a version
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 6
- REMOVED MATES = 6
- Sets
- Q(e);CHECK,XR(C)::S(E),XQ(e)
- Q(e);N_PINR(C)::R(C)
- R(b);N_GUARD::R1(G),XP(c)
- R(b);N_PINR(C)::R(C)
- R(b);S_CUTB(a)::R(G)
- B(a);N_GUARD::R(G)
- B(a);S_CUTR(b)::R1(G),XP(c)
- B(k);N_GUARD::S(E),XP(h)
- P(c);OGATE::P(B),XP(c)
- P(g);OGATEB::B(H)
- Tries
- Try
- B(H);
- Threat
- DUALS(3)
- Vars
- Q(e);CHECK,XR(C)::S(E),XQ(e)
- B(a);XB(H)::R1(G),XP(c)
- P(f);XB(H)::R1(G),XP(c)
- P(g);::B(H)
- Q(e);::R(G)
- P(j);::B(H)
- Refutation
- R(b);XB(H)
- Try
- B(H);P_PINP(g)
- Threat
- QAR2(F)
- Vars
- Q(e);CHECK,XR(C)::S(E),XQ(e)
- Q(e);N_PINR(C)::R(C)
- Refutation
- P(h);
- Try
- Q(F);CHECK
- Vars
- P(g);P_SPINP(g)::B(H)
- Refutation
- P(g);XQ(F)
- Try
- Actual
- P(B);
- Threat
- DUALS(2)
- Vars
- Q(e);CHECK,XR(C)::S(E),XQ(e)
- R(b);XP(B)::R(G)
- B(a);XP(B)::R1(G),XP(c)
- P(f);XP(B)::R1(G),XP(c)
- P(c);EP,N_PINR(C),XP(B)::R(C)
- P(g);OGATEB::B(H)
- Q(e);::R(G)
- Q(e);::R1(G),XP(c)
- Q(e);N_PINR(C)::R(G)
- Q(e);N_PINR(C)::R1(C),XP(c)
- R(i);::R1(G),XP(c)
- B(k);N_GUARD::S(E),XP(h)
- P(j);N_GUARD::B(H)
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