MESON Chess Problem Database
Problem Display
PID: 162303 (8/2NpBp1B/7P/3pk1PQ/6R1/5p2/5r2/6NK w - - 0 1)
Bonavia-Hunt, Rev Noel Aubrey
The Observer, 1924
(First published on Sun Apr 20 1924)
#2
9 + 6
| 15239 | Valois Notebooks | 2017 |
SOLUTION
- SOUND
- Sets
- 1...Rf1
- 2.Qh2#
- 1...Ra2
- 2.Sxf3#
- 1...Rb2
- 2.Sxf3#
- 1...Rc2
- 2.Sxf3#
- 1...Rd2
- 2.Sxf3#
- 1...Re2
- 2.Sxf3#
- 1...Rg2
- 2.Sxf3#
- 1...Rh2+
- 2.Qxh2#
- 1...d4
- 2.Re4#
- 1...d6
- 2.Bf6#
- 1...f5
- 2.gxf5 ep#
- 1...f6
- 2.gxf6#
- 1...Rf1
- Tries
- 1.Ba3?
- 1...Rh2+
- 2.Qxh2#
- 1...Rf1
- 2.Qh2#
- 1...Ra2
- 2.Sxf3#
- 1...Rb2
- 2.Sxf3#
- 1...Rc2
- 2.Sxf3#
- 1...Rd2
- 2.Sxf3#
- 1...Re2
- 2.Sxf3#
- 1...Rg2
- 2.Sxf3#
- 1...d4
- 2.Re4#
- 1...f5
- 2.Qe8#
- 1...f6
- 2.Qe8#
- 1...d6!
- 1...Rh2+
- 1.Bb4?
- 1...Rh2+
- 2.Qxh2#
- 1...Rf1
- 2.Qh2#
- 1...Ra2
- 2.Sxf3#
- 1...Rb2
- 2.Sxf3#
- 1...Rc2
- 2.Sxf3#
- 1...Rd2
- 2.Sxf3#
- 1...Re2
- 2.Sxf3#
- 1...Rg2
- 2.Sxf3#
- 1...d4
- 2.Re4#
- 1...f5
- 2.Qe8#
- 1...f6
- 2.Qe8#
- 1...d6!
- 1...Rh2+
- 1.Bf8?
- 1...Rh2+
- 2.Qxh2#
- 1...Rf1
- 2.Qh2#
- 1...Ra2
- 2.Sxf3#
- 1...Rb2
- 2.Sxf3#
- 1...Rc2
- 2.Sxf3#
- 1...Rd2
- 2.Sxf3#
- 1...Re2
- 2.Sxf3#
- 1...Rg2
- 2.Sxf3#
- 1...d4
- 2.Re4#
- 1...f5
- 2.Qe8#
- 1...f6
- 2.Qe8#
- 1...d6!
- 1...Rh2+
- 1.Bd3?
- 1...Rh2+
- 2.Qxh2#
- 1...d6
- 2.Bf6#
- 1...Rf1
- 2.Qh2#
- 1...Ra2
- 2.Sxf3#
- 1...Rb2
- 2.Sxf3#
- 1...Rc2
- 2.Sxf3#
- 1...Rd2
- 2.Sxf3#
- 1...Re2
- 2.Sxf3#
- 1...Rg2
- 2.Sxf3#
- 1...f5
- 2.gxf5 ep#
- 1...f6
- 2.gxf6#
- 1...d4!
- 1...Rh2+
- 1.Bg6?
- 1...Rh2+
- 2.Qxh2#
- 1...d6
- 2.Bf6#
- 1...Rf1
- 2.Qh2#
- 1...Ra2
- 2.Sxf3#
- 1...Rb2
- 2.Sxf3#
- 1...Rc2
- 2.Sxf3#
- 1...Rd2
- 2.Sxf3#
- 1...Re2
- 2.Sxf3#
- 1...Rg2
- 2.Sxf3#
- 1...d4
- 2.Re4#
- 1...f5
- 2.gxf5 ep#
- 1...f6
- 2.gxf6#
- 1...fxg6!
- 1...Rh2+
- 1.Ra4?
- 1...Rh2+
- 2.Qxh2#
- 1...d6
- 2.Bf6#
- 1...Rf1
- 2.Qh2#
- 1...Ra2
- 2.Sxf3#
- 1...Rb2
- 2.Sxf3#
- 1...Rc2
- 2.Sxf3#
- 1...Rd2
- 2.Sxf3#
- 1...Re2
- 2.Sxf3#
- 1...Rg2
- 2.Sxf3#
- 1...f5
- 2.gxf5 ep#
- 1...f6
- 2.gxf6#
- 1...d4!
- 1...Rh2+
- 1.Rb4?
- 1...Rh2+
- 2.Qxh2#
- 1...d6
- 2.Bf6#
- 1...Rf1
- 2.Qh2#
- 1...Ra2
- 2.Sxf3#
- 1...Rb2
- 2.Sxf3#
- 1...Rc2
- 2.Sxf3#
- 1...Rd2
- 2.Sxf3#
- 1...Re2
- 2.Sxf3#
- 1...Rg2
- 2.Sxf3#
- 1...f5
- 2.gxf5 ep#
- 1...f6
- 2.gxf6#
- 1...d4!
- 1...Rh2+
- 1.Qxf7?
- threat
- 2.Qxd5#
- 2.Qf4#
- 2.Qf5#
- 2.Qf6#
- 2.Qg7#
- 1...Rd2
- 2.Sxf3#
- 2.Qf4#
- 2.Qf5#
- 2.Qf6#
- 2.Qg7#
- 1...d4
- 2.Re4#
- 2.Qd5#
- 2.Qf4#
- 2.Qf5#
- 2.Qf6#
- 2.Qg7#
- 1...Rh2+!
- threat
- 1.Qh3?
- threat
- 2.Qg3#
- 1...Rh2+
- 2.Qxh2#
- 1...Rg2
- 2.Sxf3#
- 1...f5!
- threat
- 1.Qh4?
- threat
- 2.Qg3#
- 1...Rh2+
- 2.Qxh2#
- 1...Rg2
- 2.Sxf3#
- 1...f5!
- threat
- 1.Ba3?
- Keys
- 1.Bc5!
- 1...Rh2+
- 2.Qxh2#
- 1...d6
- 2.Bd4#
- 1...Rf1
- 2.Qh2#
- 1...Ra2
- 2.Sxf3#
- 1...Rb2
- 2.Sxf3#
- 1...Rc2
- 2.Sxf3#
- 1...Rd2
- 2.Sxf3#
- 1...Re2
- 2.Sxf3#
- 1...Rg2
- 2.Sxf3#
- 1...d4
- 2.Re4#
- 1...f5
- 2.Qe8#
- 1...f6
- 2.Qe8#
- 1...Rh2+
- 1.Bc5!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 3
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- R(a);N_GUARD,P_PINS(A)::QAB(E)
- R(a);N_GUARD::S(A),XP(b)
- R(a);CHECK,N_GUARD::QAB(E),XR(a)
- P(c);N_GUARD::R1(C)
- P(e);SBLOCK::B(H)
- P(f);OGATE::QAR(E)+P(D),XP(f),EP
- P(f);OGATE::QAR(E)+P(D),XP(f)
- Tries
- Try
- B(H);
- Vars
- R(a);CHECK,N_GUARD::QAB(E),XR(a)
- R(a);N_GUARD,P_PINS(A)::QAB(E)
- R(a);N_GUARD::S(A),XP(b)
- P(c);N_GUARD::R1(C)
- P(f);OGATE::QAR(E)
- Refutation
- P(e);
- Try
- B(H);
- Vars
- R(a);CHECK,N_GUARD::QAB(E),XR(a)
- R(a);N_GUARD,P_PINS(A)::QAB(E)
- R(a);N_GUARD::S(A),XP(b)
- P(c);N_GUARD::R1(C)
- P(f);OGATE::QAR(E)
- Refutation
- P(e);
- Try
- B(H);
- Vars
- R(a);CHECK,N_GUARD::QAB(E),XR(a)
- R(a);N_GUARD,P_PINS(A)::QAB(E)
- R(a);N_GUARD::S(A),XP(b)
- P(c);N_GUARD::R1(C)
- P(f);OGATE::QAR(E)
- Refutation
- P(e);
- Try
- B(I);
- Vars
- R(a);CHECK,N_GUARD::QAB(E),XR(a)
- P(e);SBLOCK::B(H)
- R(a);N_GUARD,P_PINS(A)::QAB(E)
- R(a);N_GUARD::S(A),XP(b)
- P(f);OGATE::QAR(E)+P(D),XP(f),EP
- P(f);OGATE::QAR(E)+P(D),XP(f)
- Refutation
- P(c);
- Try
- B(I);
- Vars
- R(a);CHECK,N_GUARD::QAB(E),XR(a)
- P(e);SBLOCK::B(H)
- R(a);N_GUARD,P_PINS(A)::QAB(E)
- R(a);N_GUARD::S(A),XP(b)
- P(c);N_GUARD::R1(C)
- P(f);OGATE::QAR(E)+P(D),XP(f),EP
- P(f);OGATE::QAR(E)+P(D),XP(f)
- Refutation
- P(f);XB(I)
- Try
- R(C);
- Vars
- R(a);CHECK,N_GUARD::QAB(E),XR(a)
- P(e);SBLOCK::B(H)
- R(a);N_GUARD,P_PINS(A)::QAB(E)
- R(a);N_GUARD::S(A),XP(b)
- P(f);OGATE::QAR(E)+P(D),XP(f),EP
- P(f);OGATE::QAR(E)+P(D),XP(f)
- Refutation
- P(c);
- Try
- R(C);
- Vars
- R(a);CHECK,N_GUARD::QAB(E),XR(a)
- P(e);SBLOCK::B(H)
- R(a);N_GUARD,P_PINS(A)::QAB(E)
- R(a);N_GUARD::S(A),XP(b)
- P(f);OGATE::QAR(E)+P(D),XP(f),EP
- P(f);OGATE::QAR(E)+P(D),XP(f)
- Refutation
- P(c);
- Try
- Q(E);XP(f)
- Threat
- DUALS(5)
- Refutation
- R(a);CHECK
- Try
- Q(E);
- Threat
- QAB(E)
- Vars
- R(a);CHECK,N_GUARD::QAB(E),XR(a)
- R(a);N_GUARD::S(A),XP(b)
- Refutation
- P(f);
- Try
- Q(E);
- Threat
- QAB(E)
- Vars
- R(a);CHECK,N_GUARD::QAB(E),XR(a)
- R(a);N_GUARD::S(A),XP(b)
- Refutation
- P(f);
- Try
- Actual
- B(H);
- Vars
- R(a);CHECK,N_GUARD::QAB(E),XR(a)
- P(e);SBLOCK::B(H)
- R(a);N_GUARD,P_PINS(A)::QAB(E)
- R(a);N_GUARD::S(A),XP(b)
- P(c);N_GUARD::R1(C)
- P(f);OGATE::QAR(E)
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