MESON Chess Problem Database
Problem Display
PID: 250368 (1RnrkbbR/2Kpp2p/7P/1N2N3/B7/8/5B2/5Q2 w - - 0 1)
Constable, BC
Manchester Evening News, 1923
(First published on Sat Jul 28 1923)
#2
9 + 8
| 15239 | Valois Notebooks | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Sb6
- 2.Rxd8#
- 1...Sd6
- 2.Rxd8#
- 1...Sa7
- 2.Rxd8#
- 1...d5
- 2.Sd6#
- 1...d6
- 2.Sxd6#
- 1...Sb6
- Tries
- 1.Sd6+?
- 1...Sxd6
- 2.Bxd7#
- 2.Rxd8#
- 1...exd6!
- 1...Sxd6
- 1.Be1?
- 1...Bxh6
- 2.Qf7#
- 1...Bg7
- 2.Qf7#
- 1...Ba2
- 2.Rxf8#
- 2.Qxf8#
- 1...Bb3
- 2.Rxf8#
- 2.Qxf8#
- 1...Bc4
- 2.Rxf8#
- 2.Qxf8#
- 1...Bd5
- 2.Rxf8#
- 2.Qxf8#
- 1...Be6
- 2.Rxf8#
- 2.Qxf8#
- 1...Bf7
- 2.Qxf7#
- 1...Sb6
- 2.Rxd8#
- 1...Sd6
- 2.Rxd8#
- 1...Sa7
- 2.Rxd8#
- 1...d5
- 2.Sd6#
- 1...d6
- 2.Sxd6#
- 1...e6!
- 1...Bxh6
- 1.Bg1?
- 1...Bxh6
- 2.Qf7#
- 1...Bg7
- 2.Qf7#
- 1...Ba2
- 2.Rxf8#
- 2.Qxf8#
- 1...Bb3
- 2.Rxf8#
- 2.Qxf8#
- 1...Bc4
- 2.Rxf8#
- 2.Qxf8#
- 1...Bd5
- 2.Rxf8#
- 2.Qxf8#
- 1...Be6
- 2.Rxf8#
- 2.Qxf8#
- 1...Bf7
- 2.Qxf7#
- 1...Sb6
- 2.Rxd8#
- 1...Sd6
- 2.Rxd8#
- 1...Sa7
- 2.Rxd8#
- 1...d5
- 2.Sd6#
- 1...d6
- 2.Sxd6#
- 1...e6!
- 1...Bxh6
- 1.Be3?
- 1...Bxh6
- 2.Qf7#
- 1...Bg7
- 2.Qf7#
- 1...Ba2
- 2.Rxf8#
- 2.Qxf8#
- 1...Bb3
- 2.Rxf8#
- 2.Qxf8#
- 1...Bc4
- 2.Rxf8#
- 2.Qxf8#
- 1...Bd5
- 2.Rxf8#
- 2.Qxf8#
- 1...Be6
- 2.Rxf8#
- 2.Qxf8#
- 1...Bf7
- 2.Qxf7#
- 1...Sb6
- 2.Rxd8#
- 1...Sd6
- 2.Rxd8#
- 1...Sa7
- 2.Rxd8#
- 1...d5
- 2.Sd6#
- 1...d6
- 2.Sxd6#
- 1...e6!
- 1...Bxh6
- 1.Bg3?
- 1...Bxh6
- 2.Qf7#
- 1...Bg7
- 2.Qf7#
- 1...Ba2
- 2.Rxf8#
- 2.Qxf8#
- 1...Bb3
- 2.Rxf8#
- 2.Qxf8#
- 1...Bc4
- 2.Rxf8#
- 2.Qxf8#
- 1...Bd5
- 2.Rxf8#
- 2.Qxf8#
- 1...Be6
- 2.Rxf8#
- 2.Qxf8#
- 1...Bf7
- 2.Qxf7#
- 1...Sb6
- 2.Rxd8#
- 1...Sd6
- 2.Rxd8#
- 1...Sa7
- 2.Rxd8#
- 1...d5
- 2.Sd6#
- 1...d6
- 2.Sxd6#
- 1...e6!
- 1...Bxh6
- 1.Bd4?
- 1...Bxh6
- 2.Qf7#
- 1...Bg7
- 2.Qf7#
- 1...Ba2
- 2.Rxf8#
- 2.Qxf8#
- 1...Bb3
- 2.Rxf8#
- 2.Qxf8#
- 1...Bc4
- 2.Rxf8#
- 2.Qxf8#
- 1...Bd5
- 2.Rxf8#
- 2.Qxf8#
- 1...Be6
- 2.Rxf8#
- 2.Qxf8#
- 1...Bf7
- 2.Qxf7#
- 1...Sb6
- 2.Rxd8#
- 1...Sd6
- 2.Rxd8#
- 1...Sa7
- 2.Rxd8#
- 1...d5
- 2.Sd6#
- 1...d6
- 2.Sxd6#
- 1...e6!
- 1...Bxh6
- 1.Bh4?
- 1...Bxh6
- 2.Qf7#
- 1...Bg7
- 2.Qf7#
- 1...Ba2
- 2.Rxf8#
- 2.Qxf8#
- 1...Bb3
- 2.Rxf8#
- 2.Qxf8#
- 1...Bc4
- 2.Rxf8#
- 2.Qxf8#
- 1...Bd5
- 2.Rxf8#
- 2.Qxf8#
- 1...Be6
- 2.Rxf8#
- 2.Qxf8#
- 1...Bf7
- 2.Qxf7#
- 1...Sb6
- 2.Rxd8#
- 1...Sd6
- 2.Rxd8#
- 1...Sa7
- 2.Rxd8#
- 1...d5
- 2.Sd6#
- 1...d6
- 2.Sxd6#
- 1...e6!
- 1...Bxh6
- 1.Bb6?
- 1...Bxh6
- 2.Qf7#
- 1...Sxb6
- 2.Rxd8#
- 1...Bg7
- 2.Qf7#
- 1...Ba2
- 2.Rxf8#
- 2.Qxf8#
- 1...Bb3
- 2.Rxf8#
- 2.Qxf8#
- 1...Bc4
- 2.Rxf8#
- 2.Qxf8#
- 1...Bd5
- 2.Rxf8#
- 2.Qxf8#
- 1...Be6
- 2.Rxf8#
- 2.Qxf8#
- 1...Bf7
- 2.Qxf7#
- 1...Sd6
- 2.Rxd8#
- 1...Sa7
- 2.Rxd8#
- 1...d5
- 2.Sd6#
- 1...d6
- 2.Sxd6#
- 1...e6!
- 1...Bxh6
- 1.Ba7?
- 1...Bxh6
- 2.Qf7#
- 1...Sxa7
- 2.Rxd8#
- 1...Bg7
- 2.Qf7#
- 1...Ba2
- 2.Rxf8#
- 2.Qxf8#
- 1...Bb3
- 2.Rxf8#
- 2.Qxf8#
- 1...Bc4
- 2.Rxf8#
- 2.Qxf8#
- 1...Bd5
- 2.Rxf8#
- 2.Qxf8#
- 1...Be6
- 2.Rxf8#
- 2.Qxf8#
- 1...Bf7
- 2.Qxf7#
- 1...Sb6
- 2.Rxd8#
- 1...Sd6
- 2.Rxd8#
- 1...d5
- 2.Sd6#
- 1...d6
- 2.Sxd6#
- 1...e6!
- 1...Bxh6
- 1.Rxg8?
- 1...Sb6
- 2.Rxd8#
- 1...Sd6
- 2.Rxd8#
- 1...Sa7
- 2.Rxd8#
- 1...d5
- 2.Sd6#
- 1...d6
- 2.Sxd6#
- 1...e6!
- 1...Sb6
- 1.Sd6+?
- Keys
- 1.Bc5!
- 1...Bxh6
- 2.Qf7#
- 1...Bg7
- 2.Qf7#
- 1...Ba2
- 2.Rxf8#
- 2.Qxf8#
- 1...Bb3
- 2.Rxf8#
- 2.Qxf8#
- 1...Bc4
- 2.Rxf8#
- 2.Qxf8#
- 1...Bd5
- 2.Rxf8#
- 2.Qxf8#
- 1...Be6
- 2.Rxf8#
- 2.Qxf8#
- 1...Bf7
- 2.Qxf7#
- 1...Sb6
- 2.Rxd8#
- 1...Sd6
- 2.Rxd8#
- 1...Sa7
- 2.Rxd8#
- 1...d5
- 2.Sd6#
- 1...d6
- 2.Sxd6#
- 1...e6
- 2.Qxf8#
- 1...Bxh6
- 1.Bc5!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 0
- Sets
- S(d);OGATE,P_SPINR(e)::R1(H),XR(e)
- P(a);::B(C)+S(D),DCHECK
- P(a);::B(C)+S(D),DCHECK,XP(a)
- Tries
- Try
- S(D);CHECK,P_PINP(a)
- Refutation
- P(b);XS(D)
- Try
- B(B);
- Vars
- B(g);P_SPINB(h),XP(F)::QAB1(A)
- B(g);P_SPINB(h)::QAB1(A)
- B(h);N_GUARD,P_SPINB(g)::QAB1(A),XB(h)
- S(d);OGATE,P_SPINR(e)::R1(H),XR(e)
- P(a);::B(C)+S(D),DCHECK
- P(a);::B(C)+S(D),DCHECK,XP(a)
- Refutation
- P(b);
- Try
- B(B);
- Vars
- B(g);P_SPINB(h),XP(F)::QAB1(A)
- B(g);P_SPINB(h)::QAB1(A)
- B(h);N_GUARD,P_SPINB(g)::QAB1(A),XB(h)
- S(d);OGATE,P_SPINR(e)::R1(H),XR(e)
- P(a);::B(C)+S(D),DCHECK
- P(a);::B(C)+S(D),DCHECK,XP(a)
- Refutation
- P(b);
- Try
- B(B);
- Vars
- B(g);P_SPINB(h),XP(F)::QAB1(A)
- B(g);P_SPINB(h)::QAB1(A)
- B(h);N_GUARD,P_SPINB(g)::QAB1(A),XB(h)
- S(d);OGATE,P_SPINR(e)::R1(H),XR(e)
- P(a);::B(C)+S(D),DCHECK
- P(a);::B(C)+S(D),DCHECK,XP(a)
- Refutation
- P(b);
- Try
- B(B);
- Vars
- B(g);P_SPINB(h),XP(F)::QAB1(A)
- B(g);P_SPINB(h)::QAB1(A)
- B(h);N_GUARD,P_SPINB(g)::QAB1(A),XB(h)
- S(d);OGATE,P_SPINR(e)::R1(H),XR(e)
- P(a);::B(C)+S(D),DCHECK
- P(a);::B(C)+S(D),DCHECK,XP(a)
- Refutation
- P(b);
- Try
- B(B);
- Vars
- B(g);P_SPINB(h),XP(F)::QAB1(A)
- B(g);P_SPINB(h)::QAB1(A)
- B(h);N_GUARD,P_SPINB(g)::QAB1(A),XB(h)
- S(d);OGATE,P_SPINR(e)::R1(H),XR(e)
- P(a);::B(C)+S(D),DCHECK
- P(a);::B(C)+S(D),DCHECK,XP(a)
- Refutation
- P(b);
- Try
- B(B);
- Vars
- B(g);P_SPINB(h),XP(F)::QAB1(A)
- B(g);P_SPINB(h)::QAB1(A)
- B(h);N_GUARD,P_SPINB(g)::QAB1(A),XB(h)
- S(d);OGATE,P_SPINR(e)::R1(H),XR(e)
- P(a);::B(C)+S(D),DCHECK
- P(a);::B(C)+S(D),DCHECK,XP(a)
- Refutation
- P(b);
- Try
- B(B);
- Vars
- B(g);P_SPINB(h),XP(F)::QAB1(A)
- S(d);OGATE,P_SPINR(e),XB(B)::R1(H),XR(e)
- B(g);P_SPINB(h)::QAB1(A)
- B(h);N_GUARD,P_SPINB(g)::QAB1(A),XB(h)
- S(d);OGATE,P_SPINR(e)::R1(H),XR(e)
- P(a);::B(C)+S(D),DCHECK
- P(a);::B(C)+S(D),DCHECK,XP(a)
- Refutation
- P(b);
- Try
- B(B);
- Vars
- B(g);P_SPINB(h),XP(F)::QAB1(A)
- S(d);OGATE,P_SPINR(e),XB(B)::R1(H),XR(e)
- B(g);P_SPINB(h)::QAB1(A)
- B(h);N_GUARD,P_SPINB(g)::QAB1(A),XB(h)
- S(d);OGATE,P_SPINR(e)::R1(H),XR(e)
- P(a);::B(C)+S(D),DCHECK
- P(a);::B(C)+S(D),DCHECK,XP(a)
- Refutation
- P(b);
- Try
- R(I);P_PINB(g),XB(h)
- Vars
- S(d);OGATE,P_SPINR(e)::R1(H),XR(e)
- P(a);::B(C)+S(D),DCHECK
- P(a);::B(C)+S(D),DCHECK,XP(a)
- Refutation
- P(b);
- Try
- Actual
- B(B);
- Vars
- B(g);P_SPINB(h),XP(F)::QAB1(A)
- B(g);P_SPINB(h)::QAB1(A)
- B(h);N_GUARD,P_SPINB(g)::QAB1(A),XB(h)
- S(d);OGATE,P_SPINR(e)::R1(H),XR(e)
- P(a);::B(C)+S(D),DCHECK
- P(a);::B(C)+S(D),DCHECK,XP(a)
- P(b);::QAR1(A),XB(g)
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