MESON Chess Problem Database
Problem Display
PID: 145815 (8/8/3Kn3/3NB3/8/5Prk/6Np/5Q1R w - - 0 1)
Bridgwater, Ralph Herbert
The Observer, 1926
(First published on Sun Jan 31 1926)
#2
7 + 4
| 15372 | Bridgwater Scrapbook | 2012 |
| 15239 | Valois Notebooks | 2017 |
SOLUTION
- SOUND
- Sets
- 1...Rxg2
- 2.Rxh2#
- 1...Rxf3
- 2.Qxf3#
- 1...Rg4
- 2.Rxh2#
- 1...Rg5
- 2.Rxh2#
- 1...Rg6
- 2.Rxh2#
- 1...Rg7
- 2.Rxh2#
- 1...Rg8
- 2.Rxh2#
- 1...Sd4
- 2.Sdf4#
- 1...Sf4
- 2.Sdxf4#
- 1...Sc5
- 2.Sdf4#
- 1...Sg5
- 2.Sdf4#
- 1...Sc7
- 2.Sdf4#
- 1...Sg7
- 2.Sdf4#
- 1...Sd8
- 2.Sdf4#
- 1...Sf8
- 2.Sdf4#
- 1...Rxg2
- Tries
- 1.Kxe6?
- threat
- 2.Sdf4#
- 1...Rxg2
- 2.Rxh2#
- 1...Rxf3
- 2.Qxf3#
- 1...Rg4
- 2.Rxh2#
- 1...Rg5
- 2.Rxh2#
- 1...Rg7
- 2.Rxh2#
- 1...Rg8
- 2.Rxh2#
- 1...Rg6+!
- threat
- 1.Ke7?
- 1...Rxg2
- 2.Rxh2#
- 1...Rxf3
- 2.Qxf3#
- 1...Rg4
- 2.Rxh2#
- 1...Rg5
- 2.Rxh2#
- 1...Rg6
- 2.Rxh2#
- 1...Rg8
- 2.Rxh2#
- 1...Sd4
- 2.Sdf4#
- 1...Sf4
- 2.Sdxf4#
- 1...Sc5
- 2.Sdf4#
- 1...Sg5
- 2.Sdf4#
- 1...Sc7
- 2.Sdf4#
- 1...Sg7
- 2.Sdf4#
- 1...Sd8
- 2.Sdf4#
- 1...Sf8
- 2.Sdf4#
- 1...Rg7+!
- 1...Rxg2
- 1.Se1+?
- 1...Rg2
- 2.Rxh2#
- 1...Kh4!
- 1...Rg2
- 1.Sge3+?
- 1...Rg2
- 2.Rxh2#
- 1...Kh4!
- 1...Rg2
- 1.Sh4+?
- 1...Rg2
- 2.Rxh2#
- 1...Kxh4!
- 1...Rg2
- 1.Qe2?
- 1...Rxf3
- 2.Qxf3#
- 1...Sd4
- 2.Sdf4#
- 1...Rg4
- 2.Rxh2#
- 1...Rg5
- 2.Rxh2#
- 1...Rg6
- 2.Rxh2#
- 1...Rg7
- 2.Rxh2#
- 1...Rg8
- 2.Rxh2#
- 1...Sf4
- 2.Sdxf4#
- 1...Sc5
- 2.Sdf4#
- 1...Sg5
- 2.Sdf4#
- 1...Sc7
- 2.Sdf4#
- 1...Sg7
- 2.Sdf4#
- 1...Sd8
- 2.Sdf4#
- 1...Sf8
- 2.Sdf4#
- 1...Rxg2!
- 1...Rxf3
- 1.Qc4?
- 1...Kxg2
- 2.Qf1#
- 1...Rxf3
- 2.Rxh2#
- 1...Sd4
- 2.Sdf4#
- 1...Rg4
- 2.Rxh2#
- 2.Qxg4#
- 1...Rg5
- 2.Rxh2#
- 1...Rg6
- 2.Rxh2#
- 1...Rg7
- 2.Rxh2#
- 1...Rg8
- 2.Rxh2#
- 1...Sf4
- 2.Sdxf4#
- 1...Sc5
- 2.Sdf4#
- 1...Sg5
- 2.Sdf4#
- 1...Sc7
- 2.Sdf4#
- 1...Sg7
- 2.Sdf4#
- 1...Sd8
- 2.Sdf4#
- 1...Sf8
- 2.Sdf4#
- 1...Rxg2!
- 1...Kxg2
- 1.Qb1?
- 1...Kxg2
- 2.Qf1#
- 1...Rxg2
- 2.Qh7#
- 1...Sd4
- 2.Sdf4#
- 1...Rg4
- 2.Rxh2#
- 1...Rg5
- 2.Rxh2#
- 1...Rg6
- 2.Rxh2#
- 1...Rg7
- 2.Rxh2#
- 1...Rg8
- 2.Rxh2#
- 1...Sf4
- 2.Sdxf4#
- 1...Sc5
- 2.Sdf4#
- 1...Sg5
- 2.Sdf4#
- 1...Sc7
- 2.Sdf4#
- 1...Sg7
- 2.Sdf4#
- 1...Sd8
- 2.Sdf4#
- 1...Sf8
- 2.Sdf4#
- 1...Rxf3!
- 1...Kxg2
- 1.Qc1?
- 1...Kxg2
- 2.Qf1#
- 1...Rxg2
- 2.Qh6#
- 1...Sd4
- 2.Sdf4#
- 1...Rg4
- 2.Rxh2#
- 1...Rg5
- 2.Rxh2#
- 1...Rg6
- 2.Rxh2#
- 1...Rg7
- 2.Rxh2#
- 1...Rg8
- 2.Rxh2#
- 1...Sf4
- 2.Sdxf4#
- 1...Sc5
- 2.Sdf4#
- 1...Sg5
- 2.Sdf4#
- 1...Sc7
- 2.Sdf4#
- 1...Sg7
- 2.Sdf4#
- 1...Sd8
- 2.Sdf4#
- 1...Sf8
- 2.Sdf4#
- 1...Rxf3!
- 1...Kxg2
- 1.Qd1?
- 1...Kxg2
- 2.Qf1#
- 1...Rxf3
- 2.Qxf3#
- 1...Sd4
- 2.Sdf4#
- 1...Rg4
- 2.Rxh2#
- 1...Rg5
- 2.Rxh2#
- 1...Rg6
- 2.Rxh2#
- 1...Rg7
- 2.Rxh2#
- 1...Rg8
- 2.Rxh2#
- 1...Sf4
- 2.Sdxf4#
- 1...Sc5
- 2.Sdf4#
- 1...Sg5
- 2.Sdf4#
- 1...Sc7
- 2.Sdf4#
- 1...Sg7
- 2.Sdf4#
- 1...Sd8
- 2.Sdf4#
- 1...Sf8
- 2.Sdf4#
- 1...Rxg2!
- 1...Kxg2
- 1.Qf2?
- threat
- 2.Qxg3#
- 1...Rxf3
- 2.Qxf3#
- 1...Rg4
- 2.Rxh2#
- 1...Rg5
- 2.Rxh2#
- 1...Rg6
- 2.Rxh2#
- 1...Rg7
- 2.Rxh2#
- 1...Rg8
- 2.Rxh2#
- 1...Sf4
- 2.Sdxf4#
- 1...Rxg2!
- threat
- 1.Kxe6?
- Keys
- 1.Qd3!
- 1...Kxg2
- 2.Qf1#
- 1...Rxg2
- 2.Qh7#
- 1...Rxf3
- 2.Qxf3#
- 1...Sd4
- 2.Sdf4#
- 1...Rg4
- 2.Rxh2#
- 1...Rg5
- 2.Rxh2#
- 1...Rg6
- 2.Rxh2#
- 1...Rg7
- 2.Rxh2#
- 1...Rg8
- 2.Rxh2#
- 1...Sf4
- 2.Sdxf4#
- 1...Sc5
- 2.Sdf4#
- 1...Sg5
- 2.Sdf4#
- 1...Sc7
- 2.Sdf4#
- 1...Sg7
- 2.Sdf4#
- 1...Sd8
- 2.Sdf4#
- 1...Sf8
- 2.Sdf4#
- 1...Kxg2
- 1.Qd3!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 1
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- R(b);P_SPINR(b),XS(C)::R1(B),XP(a)
- R(b);OGATE,XP(D)::QAR2(A),XR(b)
- R(b);::R1(B),XP(a)
- S(d);N_GUARD::S(E)
- S(d);N_GUARD::S(E),XS(d)
- Tries
- Try
- K(G);P-FLIGHT,XS(d)
- Threat
- S(E)
- Vars
- R(b);P_SPINR(b),XS(C)::R1(B),XP(a)
- R(b);OGATE,XP(D)::QAR2(A),XR(b)
- R(b);::R1(B),XP(a)
- Refutation
- R(b);CHECK
- Try
- K(G);S_FLIGHT
- Vars
- R(b);P_SPINR(b),XS(C)::R1(B),XP(a)
- R(b);OGATE,XP(D)::QAR2(A),XR(b)
- R(b);::R1(B),XP(a)
- S(d);N_GUARD::S(E)
- S(d);N_GUARD::S(E),XS(d)
- Refutation
- R(b);CHECK
- Try
- S(C);CHECK
- Vars
- R(b);P_SPINR(b)::R1(B),XP(a)
- Refutation
- K(c);P-FLIGHT
- Try
- S(C);CHECK
- Vars
- R(b);P_SPINR(b)::R1(B),XP(a)
- Refutation
- K(c);P-FLIGHT
- Try
- S(C);CHECK
- Vars
- R(b);P_SPINR(b)::R1(B),XP(a)
- Refutation
- K(c);P-FLIGHT,XS(C)
- Try
- Q(A);
- Vars
- R(b);OGATE,XP(D)::QAR2(A),XR(b)
- S(d);N_GUARD::S(E)
- R(b);::R1(B),XP(a)
- S(d);N_GUARD::S(E),XS(d)
- Refutation
- R(b);XS(C)
- Try
- Q(A);
- Vars
- K(c);N_SPINP(a),OGATEB,S_FLIGHT,XS(C)::QAB1(A)
- R(b);XP(D)::R1(B),XP(a)
- S(d);N_GUARD::S(E)
- R(b);::R1(B),XP(a)
- S(d);N_GUARD::S(E),XS(d)
- Refutation
- R(b);XS(C)
- Try
- Q(A);
- Vars
- K(c);N_SPINP(a),OGATEB,S_FLIGHT,XS(C)::QAB1(A)
- R(b);SBLOCK,XS(C)::QAR(A)
- S(d);N_GUARD::S(E)
- R(b);::R1(B),XP(a)
- S(d);N_GUARD::S(E),XS(d)
- Refutation
- R(b);XP(D)
- Try
- Q(A);
- Vars
- K(c);N_SPINP(a),OGATEB,S_FLIGHT,XS(C)::QAB1(A)
- R(b);SBLOCK,XS(C)::QAR(A)
- S(d);N_GUARD::S(E)
- R(b);::R1(B),XP(a)
- S(d);N_GUARD::S(E),XS(d)
- Refutation
- R(b);XP(D)
- Try
- Q(A);
- Vars
- K(c);N_SPINP(a),OGATEB,S_FLIGHT,XS(C)::QAB1(A)
- R(b);OGATE,XP(D)::QAR2(A),XR(b)
- S(d);N_GUARD::S(E)
- R(b);::R1(B),XP(a)
- S(d);N_GUARD::S(E),XS(d)
- Refutation
- R(b);XS(C)
- Try
- Q(A);
- Threat
- QAR1(A),XR(b)
- Vars
- R(b);OGATE,XP(D)::QAR2(A),XR(b)
- R(b);::R1(B),XP(a)
- S(d);N_GUARD::S(E),XS(d)
- Refutation
- R(b);XS(C)
- Try
- Actual
- Q(A);
- Vars
- K(c);N_SPINP(a),OGATEB,S_FLIGHT,XS(C)::QAB1(A)
- R(b);SBLOCK,XS(C)::QAR(A)
- R(b);OGATE,P_SPINR(b),XP(D)::QAR2(A),XR(b)
- S(d);N_GUARD::S(E)
- R(b);::R1(B),XP(a)
- S(d);N_GUARD::S(E),XS(d)
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