MESON Chess Problem Database
Problem Display
PID: 150395 (1K2N2b/2pp1B2/1n4Qn/2N1kq1R/3rr3/5PP1/4b3/BR6 w - - 0 1)
Day, RC
The Referee, 1925
(First published on Sun Dec 6 1925)
#2
10 + 10
| 15239 | Valois Notebooks | 2014 |
SOLUTION
- SOUND
- Sets
- 1...Qg5
- 2.Qxe4#
- 1...Qxh5
- 2.Qxe4#
- 1...Re3
- 2.f4#
- 1...Bd1
- 2.Sd3#
- 1...Bd3
- 2.Sxd3#
- 1...Bxf3
- 2.Sd3#
- 1...Bf6
- 2.Qxf6#
- 1...Bg7
- 2.Qxg7#
- 1...Sa4
- 2.Sxd7#
- 1...Sc4
- 2.Sxd7#
- 1...Sd5
- 2.Sxd7#
- 1...Sa8
- 2.Sxd7#
- 1...Sc8
- 2.Sxd7#
- 1...Sg4
- 2.Rxf5#
- 2.Qxf5#
- 1...Sxf7
- 2.Rxf5#
- 2.Qxf5#
- 1...Sg8
- 2.Rxf5#
- 2.Qxf5#
- 1...c6
- 2.Qd6#
- 1...d5
- 2.Qe6#
- 1...d6
- 2.Qe6#
- 1...Qg5
- Tries
- 1.Rb5?
- threat
- 2.Sd3#
- 2.Sxd7#
- 1...Bd3
- 2.Sxd3#
- 2.Sxd7#
- 1...Sd5
- 2.Sxd7#
- 1...d5
- 2.Qe6#
- 1...d6
- 2.Sd3#
- 2.Sd7#
- 2.Qe6#
- 1...Bxb5!
- threat
- 1.Rxb6?
- threat
- 2.Sxd7#
- 1...Sxf7
- 2.Rxf5#
- 2.Qxf5#
- 1...d5
- 2.Sd7#
- 2.Re6#
- 2.Qe6#
- 1...d6
- 2.Sd7#
- 2.Qe6#
- 1...Bb5!
- threat
- 1.Qxh6?
- threat
- 2.Qxh8#
- 1...Qxh5
- 2.Qxh5#
- 1...Qg5
- 2.Rxg5#
- 2.Qxg5#
- 1...Bf6
- 2.Qxf6#
- 1...Bg7
- 2.Qxg7#
- 1...Sd5
- 2.Sxd7#
- 1...Rg4!
- threat
- 1.Rb5?
- Keys
- 1.Re1!
- 1...Qxh5
- 2.Qxe4#
- 1...Bxf3
- 2.Sd3#
- 1...Sxf7
- 2.Rxf5#
- 2.Qxf5#
- 1...Rf4
- 2.Sd3#
- 1...Qg5
- 2.Qxe4#
- 1...Re3
- 2.f4#
- 1...Rg4
- 2.Sd3#
- 1...Rh4
- 2.Sd3#
- 1...Bd1
- 2.Sd3#
- 2.Rxe4#
- 2.f4#
- 1...Bf1
- 2.Rxe4#
- 2.f4#
- 1...Bd3
- 2.Sxd3#
- 2.f4#
- 1...Bc4
- 2.Rxe4#
- 2.f4#
- 1...Bb5
- 2.Rxe4#
- 2.f4#
- 1...Ba6
- 2.Rxe4#
- 2.f4#
- 1...Bf6
- 2.Qxf6#
- 1...Bg7
- 2.Qxg7#
- 1...Sa4
- 2.Sxd7#
- 1...Sc4
- 2.Sxd7#
- 1...Sd5
- 2.Sxd7#
- 1...Sa8
- 2.Sxd7#
- 1...Sc8
- 2.Sxd7#
- 1...Sg4
- 2.Rxf5#
- 2.Qxf5#
- 1...Sg8
- 2.Rxf5#
- 2.Qxf5#
- 1...c6
- 2.Qd6#
- 1...d5
- 2.Qe6#
- 1...d6
- 2.Qe6#
- 1...Qxh5
- 1.Re1!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 2
- Sets
- Q(e);OGATE::QAR1(G),XR(c)
- Q(e);N_SPINQ(e),OGATE,XR(F)::QAR1(G),XR(c)
- R(c);N_GUARD::P(C)
- B(a);N_GUARD::S(E)
- B(a);N_GUARD::S(E),XB(a)
- B(a);N_GUARD,XP(C)::S(E)
- B(j);N_GUARD::QAB1(G),XB(j)
- B(j);N_GUARD::QAB(G),XB(j)
- S(f);N_GUARD::S(E),XP(i)
- P(h);N_GUARD::QAB1(G)
- P(i);N_GUARD::QAR1(G)
- Tries
- Try
- R(B);
- Threat
- DUALS(2)
- Vars
- S(f);::S(E),XP(i)
- P(i);N_GUARD::QAR1(G)
- Refutation
- B(a);XR(B)
- Try
- R(B);XS(f)
- Threat
- S(E),XP(i)
- Refutation
- B(a);
- Try
- Q(G);XS(g)
- Threat
- QAB(G),XB(j)
- Vars
- Q(e);N_SPINQ(e),OGATE,XR(F)::QAR(G),XQ(e)
- B(j);N_GUARD::QAB1(G),XB(j)
- B(j);N_GUARD::QAB(G),XB(j)
- S(f);N_GUARD::S(E),XP(i)
- Refutation
- R(c);
- Try
- Actual
- R(B);
- Vars
- Q(e);N_SPINQ(e),OGATE,XR(F)::QAR1(G),XR(c)
- B(a);N_GUARD,XP(C)::S(E)
- R(c);P_SPINB(a)::S(E)
- Q(e);OGATE::QAR1(G),XR(c)
- R(c);N_GUARD::P(C)
- B(j);N_GUARD::QAB1(G),XB(j)
- B(j);N_GUARD::QAB(G),XB(j)
- S(f);N_GUARD::S(E),XP(i)
- P(h);N_GUARD::QAB1(G)
- P(i);N_GUARD::QAR1(G)
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