MESON Chess Problem Database
Problem Display
PID: 293 (8/1n1N4/8/1N1nB1K1/4k3/4p3/4P3/8 w - - 0 1)
Williams, Philip Hamilton
The Observer, 1920
(First published on Sun Oct 24 1920)
#2
5 + 4
| 887 | Mate in Two Moves | 1931 |
| 5454 | Near Snap | 2010 |
| 15239 | Valois Notebooks | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Sc3
- 2.Sxc3#
- 1...Sb4
- 2.Sc3#
- 1...Sf4
- 2.Sc3#
- 1...Sb6
- 2.Sc3#
- 1...Sf6
- 2.Sc3#
- 1...Sc7
- 2.Sc3#
- 1...Se7
- 2.Sc3#
- 1...Sa5
- 2.Sd6#
- 1...Sc5
- 2.Sd6#
- 1...Sd6
- 2.Sxd6#
- 1...Sd8
- 2.Sd6#
- 1...Sc3
- Tries
- 1.Kg4?
- 1...Sc3
- 2.Sxc3#
- 1...Sb4
- 2.Sc3#
- 1...Sf4
- 2.Sc3#
- 1...Sb6
- 2.Sc3#
- 1...Sc7
- 2.Sc3#
- 1...Se7
- 2.Sc3#
- 1...Sa5
- 2.Sd6#
- 1...Sc5
- 2.Sd6#
- 1...Sd6
- 2.Sxd6#
- 1...Sd8
- 2.Sd6#
- 1...Sf6+!
- 1...Sc3
- 1.Ba1?
- 1...Sb4
- 2.Sf6#
- 1...Sf4
- 2.Sf6#
- 1...Sb6
- 2.Sf6#
- 1...Sf6
- 2.Sxf6#
- 1...Sc7
- 2.Sf6#
- 1...Se7
- 2.Sf6#
- 1...Sa5
- 2.Sd6#
- 2.Sc5#
- 1...Sc5
- 2.Sd6#
- 2.Sxc5#
- 1...Sd6
- 2.Sxd6#
- 2.Sc5#
- 1...Sd8
- 2.Sd6#
- 2.Sc5#
- 1...Sc3!
- 1...Sb4
- 1.Bb2?
- 1...Sb4
- 2.Sf6#
- 1...Sf4
- 2.Sf6#
- 1...Sb6
- 2.Sf6#
- 1...Sf6
- 2.Sxf6#
- 1...Sc7
- 2.Sf6#
- 1...Se7
- 2.Sf6#
- 1...Sa5
- 2.Sd6#
- 2.Sc5#
- 1...Sc5
- 2.Sd6#
- 2.Sxc5#
- 1...Sd6
- 2.Sxd6#
- 2.Sc5#
- 1...Sd8
- 2.Sd6#
- 2.Sc5#
- 1...Sc3!
- 1...Sb4
- 1.Bh2?
- 1...Sc3
- 2.Sf6#
- 1...Sb4
- 2.Sf6#
- 1...Sb6
- 2.Sf6#
- 1...Sf6
- 2.Sxf6#
- 1...Sc7
- 2.Sf6#
- 1...Se7
- 2.Sf6#
- 1...Sa5
- 2.Sc5#
- 1...Sc5
- 2.Sxc5#
- 1...Sd6
- 2.Sc5#
- 1...Sd8
- 2.Sc5#
- 1...Sf4!
- 1...Sc3
- 1.Bc3?
- 1...Sb4
- 2.Sf6#
- 1...Sf4
- 2.Sf6#
- 1...Sb6
- 2.Sf6#
- 1...Sf6
- 2.Sxf6#
- 1...Sc7
- 2.Sf6#
- 1...Se7
- 2.Sf6#
- 1...Sa5
- 2.Sd6#
- 2.Sc5#
- 1...Sc5
- 2.Sd6#
- 2.Sxc5#
- 1...Sd6
- 2.Sxd6#
- 2.Sc5#
- 1...Sd8
- 2.Sd6#
- 2.Sc5#
- 1...Sxc3!
- 1...Sb4
- 1.Bg3?
- 1...Sc3
- 2.Sf6#
- 1...Sb4
- 2.Sf6#
- 1...Sb6
- 2.Sf6#
- 1...Sf6
- 2.Sxf6#
- 1...Sc7
- 2.Sf6#
- 1...Se7
- 2.Sf6#
- 1...Sa5
- 2.Sc5#
- 1...Sc5
- 2.Sxc5#
- 1...Sd6
- 2.Sc5#
- 1...Sd8
- 2.Sc5#
- 1...Sf4!
- 1...Sc3
- 1.Bf4?
- 1...Sc3
- 2.Sf6#
- 1...Sb4
- 2.Sf6#
- 1...Sb6
- 2.Sf6#
- 1...Sf6
- 2.Sxf6#
- 1...Sc7
- 2.Sf6#
- 1...Se7
- 2.Sf6#
- 1...Sa5
- 2.Sc5#
- 1...Sc5
- 2.Sxc5#
- 1...Sd6
- 2.Sc5#
- 1...Sd8
- 2.Sc5#
- 1...Sxf4!
- 1...Sc3
- 1.Bd6?
- 1...Sc3
- 2.Sf6#
- 1...Sb4
- 2.Sf6#
- 1...Sf4
- 2.Sf6#
- 1...Sb6
- 2.Sf6#
- 1...Sf6
- 2.Sxf6#
- 1...Sc7
- 2.Sf6#
- 1...Se7
- 2.Sf6#
- 1...Sa5
- 2.Sc5#
- 1...Sc5
- 2.Sxc5#
- 1...Sd8
- 2.Sc5#
- 1...Sxd6!
- 1...Sc3
- 1.Bf6?
- 1...Sc3
- 2.Sxc3#
- 1...Sb4
- 2.Sc3#
- 1...Sf4
- 2.Sc3#
- 1...Sb6
- 2.Sc3#
- 1...Sc7
- 2.Sc3#
- 1...Se7
- 2.Sc3#
- 1...Sa5
- 2.Sd6#
- 2.Sc5#
- 1...Sc5
- 2.Sd6#
- 2.Sxc5#
- 1...Sd6
- 2.Sxd6#
- 2.Sc5#
- 1...Sd8
- 2.Sd6#
- 2.Sc5#
- 1...Sxf6!
- 1...Sc3
- 1.Bg7?
- 1...Sc3
- 2.Sxc3#
- 1...Sb4
- 2.Sc3#
- 1...Sf4
- 2.Sc3#
- 1...Sb6
- 2.Sc3#
- 1...Sc7
- 2.Sc3#
- 1...Se7
- 2.Sc3#
- 1...Sa5
- 2.Sd6#
- 2.Sc5#
- 1...Sc5
- 2.Sd6#
- 2.Sxc5#
- 1...Sd6
- 2.Sxd6#
- 2.Sc5#
- 1...Sd8
- 2.Sd6#
- 2.Sc5#
- 1...Sf6!
- 1...Sc3
- 1.Bh8?
- 1...Sc3
- 2.Sxc3#
- 1...Sb4
- 2.Sc3#
- 1...Sf4
- 2.Sc3#
- 1...Sb6
- 2.Sc3#
- 1...Sc7
- 2.Sc3#
- 1...Se7
- 2.Sc3#
- 1...Sd6
- 2.Sxd6#
- 2.Sc5#
- 1...Sa5
- 2.Sd6#
- 2.Sc5#
- 1...Sc5
- 2.Sd6#
- 2.Sxc5#
- 1...Sd8
- 2.Sd6#
- 2.Sc5#
- 1...Sf6!
- 1...Sc3
- 1.Kg4?
- Keys
- 1.Bd4!
- 1...Sc3
- 2.Sf6#
- 1...Sb4
- 2.Sf6#
- 1...Sf4
- 2.Sf6#
- 1...Sb6
- 2.Sf6#
- 1...Sf6
- 2.Sxf6#
- 1...Sc7
- 2.Sf6#
- 1...Se7
- 2.Sf6#
- 1...Sa5
- 2.Sc5#
- 1...Sc5
- 2.Sxc5#
- 1...Sd6
- 2.Sc5#
- 1...Sd8
- 2.Sc5#
- 1...Sc3
- 1.Bd4!
This anticipates 99977(1925)
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 11
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- S(c);N_GUARD::S(B),XS(c)
- S(c);N_GUARD::S(B)
- S(d);N_GUARD::S(B)
- S(d);N_GUARD::S(B),XS(d)
- Tries
- Try
- K(D);P-FLIGHT
- Vars
- S(c);N_GUARD::S(B),XS(c)
- S(c);N_GUARD::S(B)
- S(d);N_GUARD::S(B)
- S(d);N_GUARD::S(B),XS(d)
- Refutation
- S(c);CHECK
- Try
- B(C);
- Vars
- S(c);N_GUARD::S(E)
- S(c);N_GUARD::S(E),XS(c)
- Refutation
- S(c);
- Try
- B(C);
- Vars
- S(c);N_GUARD::S(E)
- S(c);N_GUARD::S(E),XS(c)
- Refutation
- S(c);
- Try
- B(C);
- Vars
- S(c);N_GUARD::S(E)
- S(c);N_GUARD::S(E),XS(c)
- S(d);N_GUARD::S(E)
- S(d);N_GUARD::S(E),XS(d)
- Refutation
- S(c);
- Try
- B(C);
- Vars
- S(c);N_GUARD::S(E)
- S(c);N_GUARD::S(E),XS(c)
- Refutation
- S(c);XB(C)
- Try
- B(C);
- Vars
- S(c);N_GUARD::S(E)
- S(c);N_GUARD::S(E),XS(c)
- S(d);N_GUARD::S(E)
- S(d);N_GUARD::S(E),XS(d)
- Refutation
- S(c);
- Try
- B(C);
- Vars
- S(c);N_GUARD::S(E)
- S(c);N_GUARD::S(E),XS(c)
- S(d);N_GUARD::S(E)
- S(d);N_GUARD::S(E),XS(d)
- Refutation
- S(c);XB(C)
- Try
- B(C);
- Vars
- S(c);N_GUARD::S(E)
- S(c);N_GUARD::S(E),XS(c)
- S(d);N_GUARD::S(E)
- S(d);N_GUARD::S(E),XS(d)
- Refutation
- S(d);XB(C)
- Try
- B(C);
- Vars
- S(c);N_GUARD::S(B),XS(c)
- S(c);N_GUARD::S(B)
- Refutation
- S(c);XB(C)
- Try
- B(C);
- Vars
- S(c);N_GUARD::S(B),XS(c)
- S(c);N_GUARD::S(B)
- Refutation
- S(c);
- Try
- B(C);
- Vars
- S(c);N_GUARD::S(B),XS(c)
- S(c);N_GUARD::S(B)
- Refutation
- S(c);
- Try
- Actual
- B(C);
- Vars
- S(c);N_GUARD::S(E)
- S(c);N_GUARD::S(E),XS(c)
- S(d);N_GUARD::S(E)
- S(d);N_GUARD::S(E),XS(d)
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