MESON Chess Problem Database
Problem Display
PID: 226438 (4N1K1/2p2R2/N3k3/4ppP1/8/2q5/2p5/2B2B1Q w - - 0 1)
Pierce, James
Pierce, William Timbrell
English Mechanic and World of Science, 1878
(First published on Fri Apr 26 1878)
#2
8 + 6
| 15239 | Valois Notebooks | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Qa1
- 2.Sc5#
- 2.Saxc7#
- 2.Bc4#
- 2.Qc6#
- 1...Qe1
- 2.Sc5#
- 2.Saxc7#
- 2.Bc4#
- 2.Qc6#
- 1...Qb2
- 2.Sc5#
- 2.Saxc7#
- 2.Bc4#
- 2.Qc6#
- 1...Qd2
- 2.Sc5#
- 2.Saxc7#
- 1...Qb4
- 2.Saxc7#
- 1...Qd4
- 2.Saxc7#
- 1...Qa5
- 2.Qc6#
- 1...Qa3
- 2.Saxc7#
- 2.Bc4#
- 1...Qb3
- 2.Sc5#
- 2.Saxc7#
- 2.Qc6#
- 1...Qd3
- 2.Sc5#
- 2.Saxc7#
- 1...Qe3
- 2.Saxc7#
- 2.Bc4#
- 2.Qc6#
- 1...Qf3
- 2.Saxc7#
- 1...Qg3
- 2.Sc5#
- 2.Saxc7#
- 2.Bc4#
- 2.Qc6#
- 1...Qh3
- 2.Sc5#
- 2.Saxc7#
- 2.Bc4#
- 2.Qc6#
- 1...Qc4
- 2.Bxc4#
- 1...Qc5
- 2.Sxc5#
- 1...Qc6
- 2.Qxc6#
- 1...c5
- 2.Sac7#
- 2.Qc6#
- 1...c6
- 2.Sac7#
- 1...Qa1
- Tries
- 1.Sexc7+?
- 1...Kd6
- 2.Qd5#
- 2.Qh6#
- 1...Qxc7!
- 1...Kd6
- 1.Ba3?
- threat
- 2.Sg7#
- 2.Re7#
- 1...Qxa3
- 2.Saxc7#
- 2.Bc4#
- 1...Qf3
- 2.Saxc7#
- 2.Sexc7#
- 1...Qb4
- 2.Saxc7#
- 1...Qc5
- 2.Sxc5#
- 1...f4
- 2.Sg7#
- 1...c5
- 2.Sac7#
- 2.Qc6#
- 1...e4!
- threat
- 1.Be2?
- 1...Qf3
- 2.Saxc7#
- 1...Qa1
- 2.Sc5#
- 2.Saxc7#
- 2.Bc4#
- 2.Qc6#
- 1...Qe1
- 2.Sc5#
- 2.Saxc7#
- 2.Bc4#
- 2.Qc6#
- 1...Qb2
- 2.Sc5#
- 2.Saxc7#
- 2.Bc4#
- 2.Qc6#
- 1...Qd2
- 2.Sc5#
- 2.Saxc7#
- 1...Qb4
- 2.Saxc7#
- 1...Qd4
- 2.Saxc7#
- 1...Qa5
- 2.Qc6#
- 1...Qa3
- 2.Saxc7#
- 2.Bc4#
- 1...Qb3
- 2.Sc5#
- 2.Saxc7#
- 2.Qc6#
- 1...Qd3
- 2.Sc5#
- 2.Saxc7#
- 1...Qe3
- 2.Saxc7#
- 2.Bc4#
- 2.Qc6#
- 1...Qg3
- 2.Sc5#
- 2.Saxc7#
- 2.Bc4#
- 2.Qc6#
- 1...Qh3
- 2.Sc5#
- 2.Saxc7#
- 2.Bc4#
- 2.Qc6#
- 1...Qc4
- 2.Bxc4#
- 1...Qc5
- 2.Sxc5#
- 1...Qc6
- 2.Qxc6#
- 1...f4
- 2.Bg4#
- 1...c5
- 2.Sac7#
- 2.Qc6#
- 1...c6
- 2.Sac7#
- 1...e4!
- 1...Qf3
- 1.Bg2?
- threat
- 2.Bd5#
- 2.Qh6#
- 1...Qf3
- 2.Saxc7#
- 1...Qd2
- 2.Sc5#
- 2.Saxc7#
- 2.Qh6#
- 1...Qd4
- 2.Saxc7#
- 2.Qh6#
- 1...Qa5
- 2.Qh6#
- 1...Qb3
- 2.Sc5#
- 2.Saxc7#
- 2.Qh6#
- 1...Qd3
- 2.Sc5#
- 2.Saxc7#
- 2.Qh6#
- 1...Qh3
- 2.Sc5#
- 2.Saxc7#
- 2.Bd5#
- 1...Qc4
- 2.Qh6#
- 1...Qc5
- 2.Sxc5#
- 2.Qh6#
- 1...Qc6
- 2.Qh6#
- 1...c6
- 2.Sac7#
- 2.Qh6#
- 1...e4!
- threat
- 1.Bd3?
- threat
- 2.Bxf5#
- 1...Qxd3
- 2.Sc5#
- 2.Saxc7#
- 1...f4
- 2.Bf5#
- 1...e4!
- threat
- 1.Bh3?
- threat
- 2.Bxf5#
- 1...Qxh3
- 2.Sc5#
- 2.Saxc7#
- 2.Qc6#
- 1...Qf3
- 2.Saxc7#
- 1...Qd3
- 2.Sc5#
- 2.Saxc7#
- 1...e4!
- threat
- 1.Bb5?
- threat
- 2.Bd7#
- 1...Qf3
- 2.Saxc7#
- 1...Qd2
- 2.Sc5#
- 2.Saxc7#
- 1...Qd4
- 2.Saxc7#
- 1...Qd3
- 2.Sc5#
- 2.Saxc7#
- 1...Qc6
- 2.Qxc6#
- 1...c6
- 2.Sac7#
- 1...e4!
- threat
- 1.Sexc7+?
- Keys
- 1.Qf3!
- 1...Qxf3
- 2.Saxc7#
- 1...e4
- 2.Qxf5#
- 1...Qa1
- 2.Sc5#
- 2.Saxc7#
- 2.Bc4#
- 2.Qc6#
- 2.Qb3#
- 1...Qe1
- 2.Sc5#
- 2.Saxc7#
- 2.Bc4#
- 2.Qc6#
- 2.Qb3#
- 1...Qb2
- 2.Sc5#
- 2.Saxc7#
- 2.Bc4#
- 2.Qc6#
- 1...Qd2
- 2.Sc5#
- 2.Saxc7#
- 1...Qb4
- 2.Saxc7#
- 1...Qd4
- 2.Saxc7#
- 1...Qa5
- 2.Qc6#
- 1...Qa3
- 2.Saxc7#
- 2.Bc4#
- 1...Qb3
- 2.Sc5#
- 2.Saxc7#
- 2.Qc6#
- 2.Qxb3#
- 1...Qd3
- 2.Sc5#
- 2.Saxc7#
- 1...Qe3
- 2.Saxc7#
- 2.Bc4#
- 2.Qc6#
- 1...Qc4
- 2.Bxc4#
- 1...Qc5
- 2.Sxc5#
- 1...Qc6
- 2.Qxc6#
- 1...f4
- 2.Bh3#
- 1...c5
- 2.Sac7#
- 2.Qc6#
- 1...c6
- 2.Sac7#
- 1...Qxf3
- 1.Qf3!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- Q(b);N_GUARD::S(E),XP(f)
- Q(b);N_GUARD::QAR2(C)
- Q(b);N_GUARD::B(B),XQ(b)
- Q(b);N_GUARD::S(E),XQ(b)
- Q(b);N_GUARD::QAR2(C),XQ(b)
- P(f);S_CUTQ(b)::S(E)
- Tries
- Try
- S(G);CHECK,XP(f)
- Refutation
- Q(b);XS(G)
- Try
- B(A);
- Threat
- DUALS(2)
- Vars
- Q(b);N_GUARD::S(E),XP(f)
- Q(b);N_GUARD::S(E),XQ(b)
- P(d);::S(G)
- Refutation
- P(c);
- Try
- B(B);
- Vars
- Q(b);N_GUARD::S(E),XP(f)
- Q(b);N_GUARD::QAR2(C)
- Q(b);N_GUARD::B(B),XQ(b)
- Q(b);N_GUARD::S(E),XQ(b)
- Q(b);N_GUARD::QAR2(C),XQ(b)
- P(d);OGATEB::B(B)
- P(f);S_CUTQ(b)::S(E)
- Refutation
- P(c);
- Try
- B(B);
- Threat
- DUALS(2)
- Vars
- Q(b);N_GUARD::S(E),XP(f)
- Q(b);::QAR(C)
- Refutation
- P(c);
- Try
- B(B);
- Threat
- B(B),XP(d)
- Vars
- P(d);::B(B)
- Refutation
- P(c);
- Try
- B(B);P_PINP(d)
- Threat
- B(B),XP(d)
- Vars
- Q(b);N_GUARD::S(E),XP(f)
- Refutation
- P(c);
- Try
- B(B);
- Threat
- B(B)
- Vars
- Q(b);N_GUARD::S(E),XP(f)
- Q(b);N_GUARD::QAR2(C),XQ(b)
- P(f);S_CUTQ(b)::S(E)
- Refutation
- P(c);
- Try
- Actual
- Q(C);
- Vars
- Q(b);N_GUARD,XQ(C)::S(E),XP(f)
- P(c);::QAB1(C),XP(d)
- Q(b);N_GUARD::S(E),XP(f)
- Q(b);N_GUARD::QAR2(C)
- Q(b);N_GUARD::B(B),XQ(b)
- Q(b);N_GUARD::S(E),XQ(b)
- Q(b);N_GUARD::QAR2(C),XQ(b)
- P(d);OGATEB::B(B)
- P(f);S_CUTQ(b)::S(E)
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