MESON Chess Problem Database
Problem Display
PID: 66167 (8/b6p/4nQ1r/pN2p1p1/4kpKp/rn5R/BN6/2R5 w - - 0 1)
Macleod, Norman Alasdair
Sydenham, Colin Peter
Probleemblad, 1977
#2
7 + 12
| 6455 | The Chessboard Adventures of Norman Macleod | 1996 |
| 15513 | Selected Chess Problems of Colin Sydenham | 2015 |
SOLUTION
- SOUND
- Sets
- 1...Sa1
- 2.Qf5#
- 1...Sxc1
- 2.Qf5#
- 1...Sd2
- 2.Qf5#
- 1...Sbd4
- 2.Sd6#
- 1...Sbc5
- 2.Qf5#
- 1...Sed4
- 2.Sc3#
- 1...f3
- 2.Qxf3#
- 1...Sa1
- Tries
- 1.Sd6+?
- 1...Kd4
- 2.Rd3#
- 1...Kd5!
- 1...Kd4
- 1.Rd1?
- threat
- 2.Sc3#
- 2.Sd6#
- 2.Bb1#
- 2.Qf5#
- 1...Rxa2
- 2.Sc3#
- 2.Sd6#
- 2.Qf5#
- 1...Rxf6
- 2.Sc3#
- 2.Sd6#
- 2.Bb1#
- 1...Sed4
- 2.Sc3#
- 1...f3
- 2.Qxf3#
- 1...Bc5
- 2.Sc3#
- 2.Bb1#
- 2.Qf5#
- 1...Bb8
- 2.Sc3#
- 2.Bb1#
- 2.Qf5#
- 1...Sa1
- 2.Sd6#
- 2.Bd5#
- 2.Qf5#
- 1...Sc1
- 2.Sd6#
- 2.Bd5#
- 2.Qf5#
- 1...Sd2
- 2.Qf5#
- 1...Sbd4
- 2.Sd6#
- 1...Sbc5
- 2.Sd6#
- 2.Bd5#
- 2.Qf5#
- 1...Sec5
- 2.Sc3#
- 2.Sd6#
- 2.Qf5#
- 1...Sg7
- 2.Sc3#
- 2.Sd6#
- 2.Bb1#
- 1...Bd4!
- threat
- 1.Rd3?
- threat
- 2.Sc3#
- 2.Sd6#
- 2.Qf5#
- 1...Rxf6
- 2.Sc3#
- 2.Sd6#
- 1...Sxc1
- 2.Sd6#
- 2.Bd5#
- 2.Qf5#
- 1...Sed4
- 2.Sc3#
- 1...Bc5
- 2.Sc3#
- 2.Qf5#
- 1...Bb8
- 2.Sc3#
- 2.Re1#
- 2.Qf5#
- 1...Sa1
- 2.Sd6#
- 2.Bd5#
- 2.Qf5#
- 1...Sd2
- 2.Sd6#
- 2.Bd5#
- 2.Qf5#
- 1...Sbd4
- 2.Sd6#
- 1...Sbc5
- 2.Sd6#
- 2.Bd5#
- 2.Re1#
- 2.Qf5#
- 1...Sg7
- 2.Sc3#
- 2.Sd6#
- 1...Bd4!
- threat
- 1.Qd8?
- threat
- 2.Sc3#
- 2.Bb1#
- 2.Qd3#
- 2.Qa8#
- 1...Rxa2
- 2.Sc3#
- 2.Qd3#
- 2.Qa8#
- 1...Sxc1
- 2.Bd5#
- 2.Qd5#
- 2.Qa8#
- 1...f3
- 2.Qd3#
- 1...Bd4
- 2.Bb1#
- 2.Qa8#
- 1...Bb8
- 2.Sc3#
- 2.Bb1#
- 2.Re1#
- 2.Qd3#
- 1...Sa1
- 2.Bd5#
- 2.Qd5#
- 2.Qa8#
- 1...Sd2
- 2.Bd5#
- 2.Qd5#
- 2.Qa8#
- 1...Sbd4
- 2.Sd6#
- 2.Bd5#
- 2.Qd5#
- 1...Sbc5
- 2.Bd5#
- 2.Qd5#
- 1...Sed4
- 2.Sc3#
- 1...Sec5
- 2.Sc3#
- 2.Re1#
- 1...Sc7
- 2.Sc3#
- 2.Bb1#
- 2.Qd3#
- 1...Sg7
- 2.Sc3#
- 2.Bb1#
- 2.Qd3#
- 1...Sf8
- 2.Sc3#
- 2.Bb1#
- 2.Qd3#
- 1...Sxd8!
- threat
- 1.Sd6+?
- Keys
- 1.Qf7!
- threat
- 2.Qb7#
- 1...Kd5
- 2.Qb7#
- 1...f3
- 2.Qxf3#
- 1...Sbd4
- 2.Sd6#
- 1...Sbc5
- 2.Qf5#
- 1...Sed4
- 2.Sc3#
- 1...Sec5
- 2.Re1#
- 1...Sc7
- 2.Bb1#
- 1...Sg7
- 2.Bb1#
- 1...Sd8
- 2.Bb1#
- 1...Sf8
- 2.Bb1#
- threat
- 1.Qf7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 6
- REMOVED MATES = 3
- Sets
- S(b);::QAB1(G)
- S(b);XR(A)::QAB1(G)
- S(b);SBLOCK::S(F)
- S(i);SBLOCK::S(F)
- P(d);OGATE::QAB1(G),XP(d)
- Tries
- Try
- S(F);CHECK
- Vars
- K(c);P-FLIGHT,P_SPINP(g)::R1(D)
- Refutation
- K(c);P_SPINS(b),S_FLIGHT
- Try
- R(A);
- Threat
- DUALS(4)
- Vars
- S(i);::S(F)
- P(d);OGATE::QAB1(G),XP(d)
- S(b);::QAB1(G)
- S(b);::S(F)
- Refutation
- B(k);
- Try
- R(D);
- Threat
- DUALS(3)
- Vars
- S(i);::S(F)
- S(b);::S(F)
- Refutation
- B(k);
- Try
- Q(G);
- Threat
- DUALS(4)
- Vars
- P(d);::QAB1(G)
- S(i);::S(F)
- Refutation
- S(i);XQ(G)
- Try
- Actual
- Q(G);
- Threat
- QAB(G)
- Vars
- K(c);P_SPINS(b),S_FLIGHT::QAB(G)
- P(d);OGATE::QAB1(G),XP(d)
- S(b);SBLOCK::S(F)
- S(b);::QAB1(G)
- S(i);SBLOCK::S(F)
- S(i);S_CUTB(k)::R(A)
- S(i);::B(B)
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