MESON Chess Problem Database
Problem Display
PID: 185021 (8/3N4/4K3/nB3p1N/P2bkP2/3R4/4P3/8 w - - 0 1)
Evans, TC
The Observer, 1929
(First published on Sun Nov 3 1929)
#2
8 + 4
| 15239 | Valois Notebooks | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Ba1
- 2.Sc5#
- 1...Bg1
- 2.Sdf6#
- 1...Bb2
- 2.Sc5#
- 1...Bf2
- 2.Sdf6#
- 1...Bc3
- 2.Sc5#
- 1...Be3
- 2.Sdf6#
- 1...Bc5
- 2.Sxc5#
- 2.Sdf6#
- 1...Be5
- 2.Sc5#
- 1...Bb6
- 2.Sdf6#
- 1...Bf6
- 2.Sc5#
- 2.Sdxf6#
- 1...Ba7
- 2.Sdf6#
- 1...Bg7
- 2.Sc5#
- 1...Bh8
- 2.Sc5#
- 1...Sb3
- 2.Bc6#
- 1...Sc4
- 2.Bc6#
- 1...Sc6
- 2.Bxc6#
- 1...Sb7
- 2.Bc6#
- 1...Ba1
- Tries
- 1.Kf7?
- 1...Ba1
- 2.Sc5#
- 1...Bg1
- 2.Sdf6#
- 1...Bb2
- 2.Sc5#
- 1...Bf2
- 2.Sdf6#
- 1...Bc3
- 2.Sc5#
- 1...Be3
- 2.Sdf6#
- 1...Bc5
- 2.Sxc5#
- 2.Sdf6#
- 1...Be5
- 2.Sc5#
- 1...Bb6
- 2.Sdf6#
- 1...Bf6
- 2.Sc5#
- 2.Sdxf6#
- 1...Ba7
- 2.Sdf6#
- 1...Bg7
- 2.Sc5#
- 1...Bh8
- 2.Sc5#
- 1...Sb3
- 2.Bc6#
- 1...Sc4
- 2.Bc6#
- 1...Sc6
- 2.Bxc6#
- 1...Sb7
- 2.Bc6#
- 1...Kd5!
- 1...Ba1
- 1.Ba6?
- 1...Ba1
- 2.Sc5#
- 1...Bg1
- 2.Sdf6#
- 1...Bb2
- 2.Sc5#
- 1...Bf2
- 2.Sdf6#
- 1...Bc3
- 2.Sc5#
- 1...Be3
- 2.Sdf6#
- 1...Bc5
- 2.Sxc5#
- 2.Sdf6#
- 1...Be5
- 2.Sc5#
- 1...Bb6
- 2.Sdf6#
- 1...Bf6
- 2.Sc5#
- 2.Sdxf6#
- 1...Ba7
- 2.Sdf6#
- 1...Bg7
- 2.Sc5#
- 1...Bh8
- 2.Sc5#
- 1...Sb3
- 2.Bb7#
- 1...Sc4
- 2.Bb7#
- 1...Sb7
- 2.Bxb7#
- 1...Sc6!
- 1...Ba1
- 1.Kf7?
- Keys
- 1.Ke7!
- 1...Bc5+
- 2.Sxc5#
- 1...Bf6+
- 2.Sdxf6#
- 1...Sc6+
- 2.Bxc6#
- 1...Kd5
- 2.Shf6#
- 1...Ba1
- 2.Sc5#
- 1...Bg1
- 2.Sdf6#
- 1...Bb2
- 2.Sc5#
- 1...Bf2
- 2.Sdf6#
- 1...Bc3
- 2.Sc5#
- 1...Be3
- 2.Sdf6#
- 1...Be5
- 2.Sc5#
- 1...Bb6
- 2.Sdf6#
- 1...Ba7
- 2.Sdf6#
- 1...Bg7
- 2.Sc5#
- 1...Bh8
- 2.Sc5#
- 1...Sb3
- 2.Bc6#
- 1...Sc4
- 2.Bc6#
- 1...Sb7
- 2.Bc6#
- 1...Bc5+
- 1.Ke7!
FEATURES
- Static
- TYPE = WAITER
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- B(a);N_GUARD::S(H)
- S(c);N_GUARD::B(E)
- S(c);N_GUARD::B(E),XS(c)
- Tries
- Try
- K(G);S_FLIGHT
- Vars
- B(a);N_GUARD::S(H)
- S(c);N_GUARD::B(E)
- S(c);N_GUARD::B(E),XS(c)
- Refutation
- K(b);P_SPINB(a),S_FLIGHT
- Try
- B(E);
- Vars
- B(a);N_GUARD::S(H)
- S(c);N_GUARD::B(E)
- S(c);N_GUARD::B(E),XS(c)
- Refutation
- S(c);
- Try
- Actual
- K(G);P-FLIGHT
- Vars
- B(a);CHECK,N_GUARD::S(H),XB(a)
- S(c);CHECK,N_GUARD::B(E),XS(c)
- K(b);P_SPINB(a),S_FLIGHT::S(F)
- B(a);N_GUARD::S(H)
- S(c);N_GUARD::B(E)
Developed and maintained by Brian Stephenson.
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