MESON Chess Problem Database
Problem Display
PID: 220385 (7K/5P2/2p5/6PQ/P2kb3/P2pN3/B7/3RR1B1 w - - 0 1)
Slater, George James
English Mechanic and World of Science, 1875
(First published on Fri Aug 27 1875)
#2
11 + 4
| 15239 | Valois Notebooks | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Kc5
- 2.Sf5#
- 1...Bh1
- 2.Sd5#
- 1...Bg2
- 2.Sd5#
- 1...Bf3
- 2.Sd5#
- 1...Bd5
- 2.Sxd5#
- 1...Bf5
- 2.Sd5#
- 1...Bg6
- 2.Sd5#
- 1...Bh7
- 2.Sd5#
- 1...Kc5
- Tries
- 1.Sc4+?
- 1...Kc3
- 2.Rc1#
- 1...Kd5!
- 1...Kc3
- 1.Rxd3+?
- 1...Kc5
- 2.Sd1#
- 2.Sf1#
- 2.Sc2#
- 2.Sg2#
- 2.Sc4#
- 2.Sg4#
- 2.Sf5#
- 1...Ke5
- 2.Bh2#
- 2.Qh2#
- 1...Bxd3
- 2.Sd1#
- 2.Sd5#
- 1...Kxd3!
- 1...Kc5
- 1.Qg6?
- 1...Kc3
- 2.Qf6#
- 2.Qg7#
- 1...Kc5
- 2.Sf1#
- 2.Sc2#
- 2.Sg2#
- 2.Sg4#
- 2.Sd5#
- 2.Sf5#
- 1...Ke5
- 2.Qf6#
- 1...Bxg6
- 2.Sd5#
- 1...Bf5
- 2.Sd5#
- 1...Bh1
- 2.Sd5#
- 1...Bg2
- 2.Sd5#
- 1...Bf3
- 2.Sd5#
- 1...Bd5
- 2.Sxd5#
- 1...c5
- 2.Qf6#
- 2.Qg7#
- 1...d2!
- 1...Kc3
- 1.Qh2?
- threat
- 2.Sd5#
- 1...Kc3
- 2.Qe5#
- 1...Kc5
- 2.Sf1#
- 2.Sc2#
- 2.Sg2#
- 2.Sg4#
- 2.Sd5#
- 2.Sf5#
- 1...Bd5
- 2.Sxd5#
- 1...d2!
- threat
- 1.Qh6?
- 1...Kc3
- 2.Qg7#
- 2.Qf6#
- 1...Kc5
- 2.Sf1#
- 2.Sc2#
- 2.Sg2#
- 2.Sg4#
- 2.Sd5#
- 2.Sf5#
- 1...Ke5
- 2.Qf6#
- 1...Bh1
- 2.Sd5#
- 1...Bg2
- 2.Sd5#
- 1...Bf3
- 2.Sd5#
- 1...Bd5
- 2.Sxd5#
- 1...Bf5
- 2.Sd5#
- 1...Bg6
- 2.Sd5#
- 1...Bh7
- 2.Sd5#
- 1...c5
- 2.Qg7#
- 2.Qf6#
- 1...d2!
- 1...Kc3
- 1.g6?
- threat
- 2.Sd5#
- 1...Kc3
- 2.Qe5#
- 1...Bd5
- 2.Sxd5#
- 1...d2!
- threat
- 1.f8Q?
- 1...Kc3
- 2.Qb4#
- 2.Qg7#
- 2.Qf6#
- 1...Ke5
- 2.Sg4#
- 2.Qf6#
- 1...Bh1
- 2.Sd5#
- 1...Bg2
- 2.Sd5#
- 1...Bf3
- 2.Sd5#
- 1...Bd5
- 2.Sxd5#
- 1...Bf5
- 2.Sd5#
- 1...Bg6
- 2.Sd5#
- 1...Bh7
- 2.Sd5#
- 1...c5
- 2.Qg7#
- 2.Qf6#
- 1...d2!
- 1...Kc3
- 1.Sc4+?
- Keys
- 1.Qf3!
- 1...Kc3
- 2.Qf6#
- 1...Kc5
- 2.Sf5#
- 1...Ke5
- 2.Qf6#
- 1...Bxf3
- 2.Sd5#
- 1...d2
- 2.Sg4#
- 1...Bd5
- 2.Sxd5#
- 1...Bf5
- 2.Sd5#
- 1...Bg6
- 2.Sd5#
- 1...Bh7
- 2.Sd5#
- 1...c5
- 2.Qf6#
- 1...Kc3
- 1.Qf3!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 2
- Sets
- K(b);N_SPINP(a),S_FLIGHT::B(C)+S(F)
- B(c);::B(C)+S(F)
- B(c);::B(C)+S(F),XB(c)
- Tries
- Try
- S(F);CHECK
- Vars
- K(b);N_SPINP(a),S_FLIGHT::R(A)
- Refutation
- K(b);P-FLIGHT
- Try
- R(A);CHECK,XP(a)
- Refutation
- K(b);P-FLIGHT,XR(A)
- Try
- Q(I);
- Vars
- K(b);N_SPINP(a),S_FLIGHT::QAB1(I)
- B(c);XQ(I)::B(C)+S(F)
- B(c);::B(C)+S(F)
- B(c);::B(C)+S(F),XB(c)
- Refutation
- P(a);
- Try
- Q(I);
- Threat
- B(C)+S(F)
- Vars
- K(b);N_SPINP(a),S_FLIGHT::QAB(I)
- B(c);::B(C)+S(F),XB(c)
- Refutation
- P(a);
- Try
- Q(I);
- Vars
- K(b);N_SPINP(a),S_FLIGHT::QAB1(I)
- B(c);::B(C)+S(F)
- B(c);::B(C)+S(F),XB(c)
- Refutation
- P(a);
- Try
- P(H);
- Threat
- B(C)+S(F)
- Vars
- K(b);N_SPINP(a),S_FLIGHT::QAB(I)
- B(c);::B(C)+S(F),XB(c)
- Refutation
- P(a);
- Try
- P(J);
- Vars
- B(c);::B(C)+S(F)
- B(c);::B(C)+S(F),XB(c)
- Refutation
- P(a);
- Try
- Actual
- Q(I);
- Vars
- K(b);N_SPINP(a),S_FLIGHT::QAB(I)
- K(b);N_SPINP(a),S_FLIGHT::B(C)+S(F)
- K(b);N_SPINP(a),S_FLIGHT::QAB1(I)
- B(c);XQ(I)::B(C)+S(F)
- P(a);::B(C)+S(F)
- B(c);::B(C)+S(F),XB(c)
- B(c);::B(C)+S(F)
- P(d);SBLOCK::QAB(I)
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