MESON Chess Problem Database
Problem Display
PID: 270182 (8/2r5/4N1B1/3p3n/1Bbp4/5R2/3rk1K1/b2N2Rn w - - 0 1)
Evans, TC
1st Prize=, Sunday Referee, 1931
(First published on Sun Apr 12 1931)
#2
7 + 9
| 15239 | Valois Notebooks | 2023 |
SOLUTION
- SOUND
- Sets
- 1...Ra2
- 2.Re1#
- 1...Rb2
- 2.Sxd4#
- 2.Re1#
- 1...Rc2
- 2.Re1#
- 1...Rd3
- 2.Re1#
- 1...Sf2
- 2.Rxf2#
- 1...S1g3
- 2.Rf2#
- 1...S5g3
- 2.Sf4#
- 1...Sf4+
- 2.Sxf4#
- 1...Sf6
- 2.Sf4#
- 1...Sg7
- 2.Sf4#
- 1...d3
- 2.Re3#
- 1...Ra2
- Tries
- 1.Sxd4+?
- 1...Rxd4
- 2.Re1#
- 2.Re3#
- 1...Bxd4!
- 1...Rxd4
- 1.Bd3+?
- 1...Rxd3
- 2.Re1#
- 1...Bxd3!
- 1...Rxd3
- 1.Bxh5?
- threat
- 2.Sf4#
- 2.Ra3#
- 2.Rb3#
- 2.Rc3#
- 2.Re3#
- 2.Rg3#
- 2.Rh3#
- 1...Rxd1
- 2.Sf4#
- 2.Ra3#
- 2.Rb3#
- 2.Rg3#
- 2.Rh3#
- 1...Ra2
- 2.Sf4#
- 2.Re1#
- 2.Ra3#
- 2.Rb3#
- 2.Re3#
- 2.Rg3#
- 2.Rh3#
- 1...Rb2
- 2.Sxd4#
- 2.Sf4#
- 2.Re1#
- 2.Ra3#
- 2.Rb3#
- 2.Re3#
- 2.Rg3#
- 2.Rh3#
- 1...Rc2
- 2.Sf4#
- 2.Re1#
- 2.Ra3#
- 2.Rb3#
- 2.Re3#
- 2.Rg3#
- 2.Rh3#
- 1...Rd3
- 2.Sf4#
- 2.Re1#
- 2.Rf2#
- 2.Re3#
- 1...Rf7
- 2.Re3#
- 1...Rh7
- 2.Sf4#
- 2.Re3#
- 1...Bc3
- 2.Sf4#
- 2.Rxc3#
- 2.Re3#
- 2.Rg3#
- 2.Rh3#
- 1...Bb3
- 2.Sf4#
- 2.Rxb3#
- 2.Rc3#
- 2.Re3#
- 2.Rg3#
- 2.Rh3#
- 1...Bd3
- 2.Sf4#
- 2.Rff1#
- 2.Rf2#
- 2.Re3#
- 2.Rg3#
- 2.Rh3#
- 2.Rf4#
- 2.Rf5#
- 2.Rf6#
- 2.Rf7#
- 2.Rf8#
- 1...Sf2
- 2.Sf4#
- 2.Re3#
- 1...Sg3
- 2.Sf4#
- 2.Re3#
- 2.Rxg3#
- 1...d3
- 2.Sf4#
- 2.Rff1#
- 2.Rf2#
- 2.Re3#
- 2.Rg3#
- 2.Rh3#
- 2.Rf4#
- 2.Rf5#
- 2.Rf6#
- 2.Rf7#
- 2.Rf8#
- 1...Rg7+!
- threat
- 1.Rff1?
- threat
- 2.Re1#
- 1...Sf4+
- 2.Sxf4#
- 1...Rxd1!
- threat
- 1.Sxd4+?
- Keys
- 1.Rf5!
- threat
- 2.Re5#
- 1...Kd3+
- 2.Rf2#
- 1...Sf4+
- 2.Sxf4#
- 1...Rd3
- 2.Re1#
- 1...Bd3
- 2.Bxh5#
- 1...Sf2
- 2.Rxf2#
- 1...S1g3
- 2.Rf2#
- 1...S5g3
- 2.Sf4#
- 1...Sf6
- 2.Sf4#
- 1...d3
- 2.Bxh5#
- threat
- 1.Rf5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 2
- REMOVED MATES = 3
- Sets
- R(c);::R1(B)
- S(b);N_GUARD::R1(D),XS(b)
- S(b);N_GUARD::R1(D)
- S(h);N_GUARD::S(F)
- S(h);CHECK,N_GUARD::S(F),XS(h)
- P(f);N_GUARD::R1(D)
- Tries
- Try
- S(F);CHECK,XP(f)
- Refutation
- B(a);XS(F)
- Try
- B(G);CHECK
- Vars
- R(c);XB(G)::R1(B)
- Refutation
- B(e);XB(G)
- Try
- B(G);XS(h)
- Threat
- DUALS(7)
- Vars
- R(i);::B(G)+R(D),DCHECK
- Refutation
- R(i);CHECK
- Try
- R(D);
- Threat
- R1(D)
- Vars
- S(h);CHECK,N_GUARD::S(F),XS(h)
- Refutation
- R(c);XS(A)
- Try
- Actual
- R(D);
- Threat
- R(D)
- Vars
- K(d);CHECK,S_CUTS(b),S_FLIGHT::B(G)+R(D)
- S(h);CHECK,N_GUARD::S(F),XS(h)
- R(c);SBLOCK::R1(B)
- B(e);SBLOCK::B(G),XS(h)
- S(b);N_GUARD::R1(D),XS(b)
- S(b);N_GUARD::R1(D)
- S(h);N_GUARD::S(F)
- P(f);SBLOCK::B(G),XS(h)
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