MESON Chess Problem Database
Problem Display
PID: 324 (2RrN3/Q2p4/n1P3p1/3k2Bp/5P1K/1P1N1P1B/8/8 w - - 0 1)
Warton, Joseph John
Warton, Thomas Joseph
The Observer, 1923
(First published on Sun Feb 25 1923)
#2
11 + 6
| 15239 | Valois Notebooks | 2017 |
SOLUTION
- SOUND
- Sets
- 1...Rxc8
- 2.Qxd7#
- 1...Rxe8
- 2.Qxd7#
- 1...Sb4
- 2.Sxb4#
- 2.Qc5#
- 1...Sc5
- 2.Qxc5#
- 1...Sc7
- 2.Sb4#
- 2.Qc5#
- 1...Sb8
- 2.Sb4#
- 2.Qc5#
- 1...dxc6
- 2.Rxd8#
- 1...d6
- 2.Sf6#
- 1...Rxc8
- Tries
- 1.Kg3?
- 1...Rxc8
- 2.Qxd7#
- 1...Rxe8
- 2.Qxd7#
- 1...dxc6
- 2.Rxd8#
- 1...Sc5
- 2.Qxc5#
- 1...Sc7
- 2.Sb4#
- 2.Qc5#
- 1...Sb4
- 2.Sxb4#
- 2.Qc5#
- 1...Sb8
- 2.Sb4#
- 2.Qc5#
- 1...d6
- 2.Sf6#
- 1...h4+!
- 1...Rxc8
- 1.Sc7+?
- 1...Kxc6
- 2.Qxa6#
- 1...Sxc7
- 2.Qc5#
- 1...Kd6!
- 1...Kxc6
- 1.Bg4?
- 1...Rxc8
- 2.Qxd7#
- 1...Rxe8
- 2.Qxd7#
- 1...dxc6
- 2.Rxd8#
- 1...Sc5
- 2.Qxc5#
- 1...Sc7
- 2.Sb4#
- 2.Qc5#
- 1...Sb4
- 2.Sxb4#
- 2.Qc5#
- 1...Sb8
- 2.Sb4#
- 2.Qc5#
- 1...d6
- 2.Sf6#
- 1...hxg4!
- 1...Rxc8
- 1.Bf5?
- 1...Rxc8
- 2.Qxd7#
- 1...Rxe8
- 2.Qxd7#
- 1...dxc6
- 2.Rxd8#
- 1...Sc5
- 2.Qxc5#
- 1...Sc7
- 2.Sb4#
- 2.Qc5#
- 1...Sb4
- 2.Sxb4#
- 2.Qc5#
- 1...Sb8
- 2.Sb4#
- 2.Qc5#
- 1...d6
- 2.Sf6#
- 1...gxf5!
- 1...Rxc8
- 1.Bf6?
- threat
- 2.Qd4#
- 1...Rxc8
- 2.Qxd7#
- 1...Sc7
- 2.Sb4#
- 2.Qc5#
- 1...Sc5
- 2.Sb4#
- 2.Qxc5#
- 1...g5+!
- threat
- 1.Bh6?
- 1...Rxc8
- 2.Qxd7#
- 1...Rxe8
- 2.Qxd7#
- 1...dxc6
- 2.Rxd8#
- 1...Sc5
- 2.Qxc5#
- 1...Sc7
- 2.Sb4#
- 2.Qc5#
- 1...Sb4
- 2.Sxb4#
- 2.Qc5#
- 1...Sb8
- 2.Sb4#
- 2.Qc5#
- 1...d6
- 2.Sf6#
- 1...g5+!
- 1...Rxc8
- 1.Be7?
- threat
- 2.Sf6#
- 1...Rxc8
- 2.Qxd7#
- 1...Rxe8
- 2.Qxd7#
- 1...Sc5
- 2.Qxc5#
- 1...Sc7
- 2.Sb4#
- 2.Qc5#
- 1...g5+!
- threat
- 1.Bxd8?
- threat
- 2.Qxd7#
- 1...dxc6
- 2.Qd7#
- 1...Sc5
- 2.Qxc5#
- 1...Sc7
- 2.Sb4#
- 2.Qc5#
- 1...Sb8
- 2.Sb4#
- 2.Qc5#
- 1...d6
- 2.Sf6#
- 1...g5+!
- threat
- 1.Rb8?
- 1...Kxc6
- 2.Qb7#
- 2.Qa8#
- 1...Rxb8
- 2.Qxd7#
- 1...Rxe8
- 2.Qxd7#
- 1...Sxb8
- 2.Sb4#
- 2.Qc5#
- 1...dxc6
- 2.Rxd8#
- 1...Sc5
- 2.Qxc5#
- 1...Rc8
- 2.Qxd7#
- 1...Sb4
- 2.Sxb4#
- 2.Qc5#
- 1...Sc7
- 2.Sb4#
- 2.Qc5#
- 1...d6!
- 1...Kxc6
- 1.Rxd8?
- threat
- 2.Qxd7#
- 1...Sc5
- 2.Qxc5#
- 1...d6
- 2.Rxd6#
- 1...Sc7
- 2.Sb4#
- 2.Qc5#
- 1...Sb8
- 2.Sb4#
- 2.Qc5#
- 1...Kxc6!
- threat
- 1.Qe3?
- threat
- 2.Qe4#
- 2.Qe5#
- 1...Rxc8
- 2.Qe4#
- 1...Sc7
- 2.Sb4#
- 2.Qc5#
- 2.Qe4#
- 1...d6
- 2.Sf6#
- 2.Be6#
- 2.Qe4#
- 1...Sc5
- 2.Sb4#
- 2.Qxc5#
- 2.Qe5#
- 1...Rxe8!
- threat
- 1.f5?
- 1...Rxc8
- 2.Qxd7#
- 1...Rxe8
- 2.Qxd7#
- 1...dxc6
- 2.Rxd8#
- 1...Sc5
- 2.Qxc5#
- 1...Sc7
- 2.Qc5#
- 1...d6
- 2.Sf6#
- 1...Sb4
- 2.Qc5#
- 1...Sb8
- 2.Qc5#
- 1...gxf5!
- 1...Rxc8
- 1.Kg3?
- Keys
- 1.Sg7!
- 1...Kd6
- 2.Qd4#
- 1...Rxc8
- 2.Qxd7#
- 1...dxc6
- 2.Rxd8#
- 1...Sc5
- 2.Qxc5#
- 1...Sc7
- 2.Qc5#
- 1...Re8
- 2.Qxd7#
- 1...Rf8
- 2.Qxd7#
- 1...Rg8
- 2.Qxd7#
- 1...Rh8
- 2.Qxd7#
- 1...Sb4
- 2.Qc5#
- 1...Sb8
- 2.Qc5#
- 1...d6
- 2.Be6#
- 1...Kd6
- 1.Sg7!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 1
- ADDED MATES = 7
- REMOVED MATES = 0
- Sets
- R(f);N_GUARD,XR(J)::QAR2(I),XP(e)
- R(f);N_GUARD,XS(K)::QAR2(I),XP(e)
- S(c);N_GUARD::QAR1(I),XS(c)
- P(e);OGATEB,SBLOCK,XP(H)::R(J),XR(f)
- P(e);SBLOCK::S(K)
- Tries
- Try
- K(F);S_FLIGHT
- Vars
- R(f);N_GUARD,XR(J)::QAR2(I),XP(e)
- R(f);N_GUARD,XS(K)::QAR2(I),XP(e)
- P(e);OGATEB,SBLOCK,XP(H)::R(J),XR(f)
- S(c);N_GUARD::QAR1(I),XS(c)
- P(e);SBLOCK::S(K)
- Refutation
- P(b);CHECK
- Try
- S(K);CHECK
- Vars
- K(a);S_FLIGHT,XP(H)::QAR2(I),XS(c)
- S(c);XS(K)::QAR1(I)
- Refutation
- K(a);P-FLIGHT
- Try
- B(D);
- Vars
- R(f);N_GUARD,XR(J)::QAR2(I),XP(e)
- R(f);N_GUARD,XS(K)::QAR2(I),XP(e)
- P(e);OGATEB,SBLOCK,XP(H)::R(J),XR(f)
- S(c);N_GUARD::QAR1(I),XS(c)
- P(e);SBLOCK::S(K)
- Refutation
- P(b);XB(D)
- Try
- B(D);
- Vars
- R(f);N_GUARD,XR(J)::QAR2(I),XP(e)
- R(f);N_GUARD,XS(K)::QAR2(I),XP(e)
- P(e);OGATEB,SBLOCK,XP(H)::R(J),XR(f)
- S(c);N_GUARD::QAR1(I),XS(c)
- P(e);SBLOCK::S(K)
- Refutation
- P(d);XB(D)
- Try
- B(G);
- Threat
- QAR1(I)
- Vars
- R(f);N_GUARD,XR(J)::QAR2(I),XP(e)
- Refutation
- P(d);CHECK
- Try
- B(G);
- Vars
- R(f);N_GUARD,XR(J)::QAR2(I),XP(e)
- R(f);N_GUARD,XS(K)::QAR2(I),XP(e)
- P(e);OGATEB,SBLOCK,XP(H)::R(J),XR(f)
- S(c);N_GUARD::QAR1(I),XS(c)
- P(e);SBLOCK::S(K)
- Refutation
- P(d);CHECK
- Try
- B(G);
- Threat
- S(K)
- Vars
- R(f);N_GUARD,XR(J)::QAR2(I),XP(e)
- R(f);N_GUARD,XS(K)::QAR2(I),XP(e)
- S(c);N_GUARD::QAR1(I),XS(c)
- Refutation
- P(d);CHECK
- Try
- B(G);XR(f)
- Threat
- QAR2(I),XP(e)
- Vars
- P(e);XP(H)::QAR2(I)
- S(c);N_GUARD::QAR1(I),XS(c)
- P(e);SBLOCK::S(K)
- Refutation
- P(d);CHECK
- Try
- R(J);
- Vars
- R(f);N_GUARD,XR(J)::QAR2(I),XP(e)
- R(f);N_GUARD,XS(K)::QAR2(I),XP(e)
- P(e);OGATEB,SBLOCK,XP(H)::R(J),XR(f)
- S(c);N_GUARD::QAR1(I),XS(c)
- R(f);N_GUARD::QAR2(I),XP(e)
- Refutation
- P(e);
- Try
- R(J);P_PINP(e),XR(f)
- Threat
- QAR2(I),XP(e)
- Vars
- S(c);N_GUARD::QAR1(I),XS(c)
- P(e);OGATE::R1(J),XP(e)
- Refutation
- K(a);N_SPINP(e),S_FLIGHT,XP(H)
- Try
- Q(I);
- Threat
- DUALS(2)
- Vars
- R(f);XR(J)::QAB1(I)
- Refutation
- R(f);XS(K)
- Try
- P(E);
- Vars
- R(f);N_GUARD,XR(J)::QAR2(I),XP(e)
- R(f);N_GUARD,XS(K)::QAR2(I),XP(e)
- P(e);OGATEB,SBLOCK,XP(H)::R(J),XR(f)
- S(c);N_GUARD::QAR1(I),XS(c)
- S(c);N_GUARD::QAR1(I)
- P(e);SBLOCK::S(K)
- Refutation
- P(d);XP(E)
- Try
- Actual
- S(K);
- Vars
- K(a);P-FLIGHT::QAR2(I)
- R(f);N_GUARD,XR(J)::QAR2(I),XP(e)
- P(e);OGATEB,SBLOCK,XP(H)::R(J),XR(f)
- S(c);N_GUARD::QAR1(I),XS(c)
- S(c);N_GUARD::QAR1(I)
- R(f);N_GUARD::QAR2(I),XP(e)
- P(e);N_GUARD,SBLOCK::B(D)
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