MESON Chess Problem Database
Problem Display
PID: 222662 (3NR3/3p4/N1PkP1KQ/3p4/4p3/6b1/8/7B w - - 0 1)
Hopkins, F O'Neill
English Mechanic and World of Science, 1884
(First published on Fri Nov 21 1884)
#2
8 + 5
| 6490 | yacpdb | 2020 |
| 15239 | Valois Notebooks | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Be1
- 2.Qf4#
- 1...Bf2
- 2.Qf4#
- 1...Bh2
- 2.Qxh2#
- 1...Bf4
- 2.Qxf4#
- 1...Bh4
- 2.Qf4#
- 1...Be5
- 2.Qf8#
- 1...dxc6
- 2.Sf7#
- 1...dxe6
- 2.Rxe6#
- 1...Be1
- Tries
- 1.Kf5?
- threat
- 2.Qf8#
- 2.exd7#
- 2.e7#
- 1...dxe6+
- 2.Rxe6#
- 2.Qxe6#
- 1...dxc6
- 2.Sb7#
- 2.Sf7#
- 2.Qf8#
- 1...Bf4
- 2.Qxf4#
- 2.Qf8#
- 1...Bh4
- 2.Qf4#
- 1...Be5
- 2.Qf8#
- 1...d4!
- threat
- 1.Qc1?
- threat
- 2.Sf7#
- 1...d4
- 2.Qc5#
- 1...Ke5!
- threat
- 1.Qe3?
- threat
- 2.Qxg3#
- 1...Ke5
- 2.Sf7#
- 1...dxe6
- 2.Rxe6#
- 1...d4
- 2.Qxd4#
- 1...Be1
- 2.Qf4#
- 1...Bf2
- 2.Qf4#
- 1...Bf4
- 2.Qxf4#
- 1...Bh4
- 2.Qf4#
- 1...Be5
- 2.Qc5#
- 2.Qa3#
- 1...Bh2!
- threat
- 1.Qg5?
- threat
- 2.Qxg3#
- 1...dxe6
- 2.Rxe6#
- 1...Be1
- 2.Qf4#
- 1...Bf2
- 2.Qf4#
- 1...Bf4
- 2.Qxf4#
- 1...Bh4
- 2.Qf4#
- 1...Be5
- 2.Qe7#
- 1...d4
- 2.Qc5#
- 1...Bh2!
- threat
- 1.exd7?
- threat
- 2.Kf5#
- 2.Kg5#
- 2.Kh5#
- 2.Kf7#
- 2.Kg7#
- 2.Kh7#
- 2.Re6#
- 2.Qf8#
- 1...Bf4
- 2.Re6#
- 2.Qxf4#
- 2.Qf8#
- 1...Bh4
- 2.Re6#
- 2.Qf4#
- 1...Be5
- 2.Re6#
- 2.Qf8#
- 1...d4!
- threat
- 1.Kf5?
- Keys
- 1.Qd2!
- 1...Ke5
- 2.Sf7#
- 1...dxc6
- 2.Sf7#
- 1...dxe6
- 2.Rxe6#
- 1...d4
- 2.Qxd4#
- 1...Be1
- 2.Qf4#
- 1...Bf2
- 2.Qf4#
- 1...Bh2
- 2.Qxh2#
- 1...Bf4
- 2.Qxf4#
- 1...Bh4
- 2.Qf4#
- 1...Be5
- 2.Qb4#
- 1...e3
- 2.Qxd5#
- 1...Ke5
- 1.Qd2!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 1
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- B(a);N_GUARD::QAB(F)
- B(a);OGATEB::QAB(F),XB(a)
- B(a);N_GUARD::QAB(F),XB(a)
- B(a);SBLOCK::QAB(F)
- P(e);SBLOCK,XP(C)::S(G)
- P(e);OGATE,XP(D)::R1(H),XP(e)
- Tries
- Try
- K(E);S_FLIGHT
- Threat
- DUALS(3)
- Vars
- B(a);N_GUARD::QAB(F)
- B(a);::QAB(F)
- Refutation
- P(c);
- Try
- Q(F);
- Threat
- S(G)
- Vars
- P(c);::QAB1(F)
- Refutation
- K(d);S_FLIGHT
- Try
- Q(F);
- Threat
- QAB(F),XB(a)
- Vars
- K(d);P_SPINP(b),S_FLIGHT::S(G)
- P(e);OGATE,XP(D)::R1(H),XP(e)
- P(c);OGATEB::QAR2(F),XP(c)
- B(a);N_GUARD::QAB(F)
- B(a);N_GUARD::QAB(F),XB(a)
- Refutation
- B(a);
- Try
- Q(F);
- Threat
- QAB(F),XB(a)
- Vars
- P(e);OGATE,XP(D)::R1(H),XP(e)
- B(a);N_GUARD::QAB(F)
- B(a);N_GUARD::QAB(F),XB(a)
- B(a);SBLOCK::QAB1(F)
- P(c);OGATE::QAB1(F)
- Refutation
- B(a);
- Try
- P(D);XP(e)
- Threat
- DUALS(8)
- Refutation
- P(c);
- Try
- Actual
- Q(F);P_PINP(c)
- Vars
- K(d);N_SPINP(c),S_FLIGHT::S(G)
- P(e);SBLOCK,XP(C)::S(G)
- P(e);OGATE,XP(D)::R1(H),XP(e)
- P(c);OGATEB::QAR2(F),XP(c)
- B(a);N_GUARD::QAB(F)
- B(a);OGATEB::QAB(F),XB(a)
- B(a);N_GUARD::QAB(F),XB(a)
- B(a);SBLOCK::QAB(F)
- P(b);::QAR1(F),XP(c)
Developed and maintained by Brian Stephenson.
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