MESON Chess Problem Database
Problem Display
PID: 165102 (3Rb3/N2p2N1/6P1/2pkB3/Q4P2/6bR/5p2/5K1n w - - 0 1)
Stewart, John
The Observer, 1927
(First published on Sun Jul 17 1927)
#2
9 + 7
| 15239 | Valois Notebooks | 2017 |
SOLUTION
- SOUND
- Sets
- 1...Bh2
- 2.Rd3#
- 1...Bh4
- 2.Rd3#
- 1...Bxg6
- 2.Rxd7#
- 1...Bf7
- 2.Rxd7#
- 1...c4
- 2.Qc6#
- 1...d6
- 2.Rxd6#
- 1...Bh2
- Tries
- 1.Sc6?
- threat
- 2.Se7#
- 1...Bxf4
- 2.Rd3#
- 1...Bh4
- 2.Rd3#
- 1...c4!
- threat
- 1.Sxe8?
- threat
- 2.Sc7#
- 1...Ke6
- 2.Qxd7#
- 1...c4
- 2.Qc6#
- 1...Bxf4!
- threat
- 1.Ba1?
- 1...Bxf4
- 2.Rd3#
- 1...Bxg6
- 2.Rxd7#
- 1...c4
- 2.Qc6#
- 1...Bh2
- 2.Rd3#
- 1...Bh4
- 2.Rd3#
- 1...Bf7
- 2.Rxd7#
- 1...d6
- 2.Rh5#
- 1...Kd6!
- 1...Bxf4
- 1.Bb2?
- 1...Bxf4
- 2.Rd3#
- 1...Bxg6
- 2.Rxd7#
- 1...c4
- 2.Qc6#
- 1...Bh2
- 2.Rd3#
- 1...Bh4
- 2.Rd3#
- 1...Bf7
- 2.Rxd7#
- 1...d6
- 2.Rh5#
- 1...Kd6!
- 1...Bxf4
- 1.Bc3?
- 1...Bxf4
- 2.Rd3#
- 1...Bxg6
- 2.Rxd7#
- 1...c4
- 2.Qc6#
- 1...Bh2
- 2.Rd3#
- 1...Bh4
- 2.Rd3#
- 1...Bf7
- 2.Rxd7#
- 1...d6
- 2.Rh5#
- 1...Kd6!
- 1...Bxf4
- 1.Bc7?
- threat
- 2.Rh5#
- 1...Bxf4
- 2.Rd3#
- 1...Bxg6
- 2.Rxd7#
- 1...Bh4
- 2.Rd3#
- 1...c4!
- threat
- 1.Bb8?
- threat
- 2.Rh5#
- 1...Bxf4
- 2.Rd3#
- 1...Bxg6
- 2.Rxd7#
- 1...Bh4
- 2.Rd3#
- 1...c4!
- threat
- 1.Rxg3?
- threat
- 2.Rd3#
- 1...Bxg6
- 2.Rxd7#
- 1...c4
- 2.Qc6#
- 1...Sxg3+!
- threat
- 1.Rh5?
- threat
- 2.Bc7#
- 2.Bb8#
- 1...Bxf4
- 2.Bxf4#
- 1...Bxg6
- 2.Rxd7#
- 1...c4
- 2.Qc6#
- 1...d6
- 2.Ba1#
- 2.Bb2#
- 2.Bc3#
- 2.Bxd6#
- 2.Bf6#
- 2.Rxd6#
- 1...Bh4!
- threat
- 1.Sc6?
- Keys
- 1.Bf6!
- 1...Kd6
- 2.Qc6#
- 1...Bxf4
- 2.Rd3#
- 1...Bxg6
- 2.Rxd7#
- 1...c4
- 2.Qc6#
- 1...Bh2
- 2.Rd3#
- 1...Bh4
- 2.Rd3#
- 1...Bf7
- 2.Rxd7#
- 1...d6
- 2.Rh5#
- 1...Kd6
- 1.Bf6!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 1
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- B(c);OGATE::R(B)
- B(g);N_GUARD,XP(F)::R(I),XP(f)
- B(g);N_GUARD::R(I),XP(f)
- P(d);::QAB1(C)
- P(f);OGATE::R1(I),XP(f)
- Tries
- Try
- S(G);
- Threat
- S(G)
- Vars
- B(c);OGATE,XP(D)::R(B)
- B(c);OGATE::R(B)
- Refutation
- P(d);
- Try
- S(H);XB(g)
- Threat
- S(H)
- Vars
- K(e);N_SPINP(f),S_FLIGHT::QAB1(C),XP(f)
- P(d);::QAB1(C)
- Refutation
- B(c);XP(D)
- Try
- B(E);
- Vars
- B(c);OGATE,XP(D)::R(B)
- B(g);N_GUARD,XP(F)::R(I),XP(f)
- P(d);::QAB1(C)
- B(c);OGATE::R(B)
- B(g);N_GUARD::R(I),XP(f)
- P(f);::R(B)
- Refutation
- K(e);P-FLIGHT
- Try
- B(E);
- Vars
- B(c);OGATE,XP(D)::R(B)
- B(g);N_GUARD,XP(F)::R(I),XP(f)
- P(d);::QAB1(C)
- B(c);OGATE::R(B)
- B(g);N_GUARD::R(I),XP(f)
- P(f);::R(B)
- Refutation
- K(e);P-FLIGHT
- Try
- B(E);
- Vars
- B(c);OGATE,XP(D)::R(B)
- B(g);N_GUARD,XP(F)::R(I),XP(f)
- P(d);::QAB1(C)
- B(c);OGATE::R(B)
- B(g);N_GUARD::R(I),XP(f)
- P(f);::R(B)
- Refutation
- K(e);P-FLIGHT
- Try
- B(E);
- Threat
- R(B)
- Vars
- B(c);OGATE,XP(D)::R(B)
- B(g);N_GUARD,XP(F)::R(I),XP(f)
- B(c);OGATE::R(B)
- Refutation
- P(d);
- Try
- B(E);
- Threat
- R(B)
- Vars
- B(c);OGATE,XP(D)::R(B)
- B(g);N_GUARD,XP(F)::R(I),XP(f)
- B(c);OGATE::R(B)
- Refutation
- P(d);
- Try
- R(B);XB(c)
- Threat
- R(B)
- Vars
- B(g);N_GUARD,XP(F)::R(I),XP(f)
- P(d);::QAB1(C)
- Refutation
- S(a);CHECK,XR(B)
- Try
- R(B);
- Threat
- DUALS(2)
- Vars
- B(c);OGATE,XP(D)::R(B)+B(E),XB(c)
- B(g);N_GUARD,XP(F)::R(I),XP(f)
- P(d);::QAB1(C)
- Refutation
- B(c);
- Try
- Actual
- B(E);
- Vars
- K(e);P-FLIGHT::QAR1(C)
- B(c);OGATE,XP(D)::R(B)
- B(g);N_GUARD,XP(F)::R(I),XP(f)
- P(d);::QAB1(C)
- B(c);OGATE::R(B)
- B(g);N_GUARD::R(I),XP(f)
- P(f);::R(B)
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