MESON Chess Problem Database
Problem Display
PID: 159007 (4NR2/7q/p7/4kn2/1RQ1NpP1/K2P4/7n/6b1 w - - 0 1)
Sydenham, Colin Peter
Comm., British Chess Magazine, 1975
#2
8 + 7
| 15513 | Selected Chess Problems of Colin Sydenham | 2015 |
SOLUTION
- SOUND
- Sets
- 1...Qg8
- 2.Rxf5#
- 1...Qh3
- 2.Rxf5#
- 1...Qh4
- 2.Rxf5#
- 1...Qh6
- 2.Rxf5#
- 1...Qa7
- 2.Rxf5#
- 1...Qb7
- 2.Rxf5#
- 1...Qc7
- 2.Rxf5#
- 1...Qe7
- 2.Rxf5#
- 1...Qg7
- 2.Rxf5#
- 1...Qh8
- 2.Rxf5#
- 1...Qg8
- Tries
- 1.Sf2?
- threat
- 2.Qe4#
- 1...Qb7
- 2.Rxf5#
- 1...Se3
- 2.d4#
- 1...Sg3
- 2.d4#
- 1...Sh4
- 2.d4#
- 1...Sd6
- 2.d4#
- 1...Sh6
- 2.d4#
- 1...Se7
- 2.d4#
- 1...Sg7
- 2.d4#
- 1...Sd4!
- threat
- 1.Sc3?
- threat
- 2.Qd5#
- 2.Qe4#
- 1...Qg8
- 2.Rxf5#
- 2.Qe4#
- 1...Qb7
- 2.Rxf5#
- 1...Qd7
- 2.Qe4#
- 1...Qf7
- 2.Qe4#
- 1...Bd4
- 2.Qd5#
- 1...Se3
- 2.d4#
- 1...Sg3
- 2.Qd5#
- 1...Sd4
- 2.Qd5#
- 1...Sh4
- 2.Qd5#
- 1...Sd6
- 2.Qd5#
- 1...Sh6
- 2.Qd5#
- 1...Sg7
- 2.Qd5#
- 1...Se7!
- threat
- 1.Sc5?
- threat
- 2.Qe6#
- 2.Qe4#
- 1...Bxc5
- 2.Qe4#
- 1...Bd4
- 2.Qe6#
- 1...Qg6
- 2.Sd7#
- 2.Qe4#
- 1...Qg8
- 2.Sd7#
- 2.Rxf5#
- 2.Qe4#
- 1...Qh6
- 2.Sd7#
- 2.Rxf5#
- 2.Qe4#
- 1...Qb7
- 2.Rxf5#
- 2.Qe6#
- 1...Qd7
- 2.Sxd7#
- 2.Qe4#
- 1...Qe7
- 2.Rxf5#
- 2.Qe4#
- 1...Qf7
- 2.Qe4#
- 1...Se3
- 2.Qe6#
- 2.Qd4#
- 2.d4#
- 1...Sg3
- 2.Qe6#
- 1...Sh4
- 2.Qe6#
- 1...Sd6
- 2.Qe6#
- 1...Sh6
- 2.Qe6#
- 1...Se7
- 2.Sd7#
- 2.Qe6#
- 1...Sg7
- 2.Sd7#
- 1...Sd4!
- threat
- 1.S4f6?
- threat
- 2.Qd5#
- 2.Qe4#
- 1...Bd4
- 2.Qd5#
- 1...Qg8
- 2.Sd7#
- 2.Qe4#
- 1...Qd7
- 2.Sxd7#
- 2.Qe4#
- 1...Qf7
- 2.Qe4#
- 1...Se3
- 2.d4#
- 1...Sg3
- 2.Qd5#
- 1...Sd4
- 2.Qd5#
- 1...Sh4
- 2.Qd5#
- 1...Sd6
- 2.Qd5#
- 1...Sh6
- 2.Qd5#
- 1...Se7
- 2.Sd7#
- 1...Sg7
- 2.Sd7#
- 2.Qd5#
- 1...Qb7!
- threat
- 1.Rb5+?
- 1...Bc5+
- 2.Rxc5#
- 1...axb5!
- 1...Bc5+
- 1.Sf2?
- Keys
- 1.Sg5!
- threat
- 2.Qe6#
- 2.Qe4#
- 1...Bd4
- 2.Qe6#
- 1...Qg6
- 2.Qe4#
- 1...Qg8
- 2.Rxf5#
- 2.Qe4#
- 1...Qh6
- 2.Sf7#
- 2.Rxf5#
- 2.Qe4#
- 1...Qb7
- 2.Rxf5#
- 2.Qe6#
- 1...Qd7
- 2.Qe4#
- 1...Qe7
- 2.Rxf5#
- 2.Qe4#
- 1...Qf7
- 2.Sxf7#
- 2.Qe4#
- 1...Se3
- 2.Qe6#
- 2.Qd4#
- 2.d4#
- 1...Sg3
- 2.Qe6#
- 1...Sd4
- 2.Qc5#
- 1...Sh4
- 2.Qe6#
- 1...Sd6
- 2.Qe6#
- 1...Sh6
- 2.Qe6#
- 1...Se7
- 2.Qe6#
- 1...Sg7
- 2.Sf7#
- threat
- 1.Sg5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 10
- REMOVED MATES = 10
- Sets
- Q(g);N_GUARD::R1(H),XS(e)
- Q(g);N_GUARD,P_PINP(B)::R1(H),XS(e)
- Q(g);N_GUARD,P_PINR(C)::R1(H),XS(e)
- Tries
- Try
- S(E);
- Threat
- QAR1(D)
- Vars
- Q(g);N_GUARD::R1(H),XS(e)
- S(e);N_GUARD::P(B)
- Refutation
- S(e);
- Try
- S(E);
- Threat
- DUALS(2)
- Vars
- Q(g);N_GUARD::R1(H),XS(e)
- Q(g);::QAR1(D)
- B(a);::QAR1(D)
- S(e);N_GUARD,S_CUTB(a)::P(B)
- S(e);::QAR1(D)
- Refutation
- S(e);
- Try
- S(E);
- Threat
- DUALS(2)
- Vars
- B(a);P_PINR(C),XS(E)::QAR1(D)
- B(a);::QAR1(D)
- Q(g);::QAR1(D)
- S(e);::QAR1(D)
- S(e);S_CUTQ(g)::S(E)
- Refutation
- S(e);
- Try
- S(E);
- Threat
- DUALS(2)
- Vars
- B(a);::QAR1(D)
- Q(g);::QAR1(D)
- S(e);N_GUARD,S_CUTB(a)::P(B)
- S(e);::QAR1(D)
- S(e);S_CUTQ(g)::S(E)
- Refutation
- Q(g);
- Try
- R(C);CHECK
- Vars
- B(a);CHECK,N_GUARD,P_SPINB(a)::R(C),XB(a)
- Refutation
- P(f);XR(C)
- Try
- Actual
- S(E);
- Threat
- DUALS(2)
- Vars
- B(a);::QAR1(D)
- Q(g);::QAR1(D)
- S(e);::QAR1(D)
- S(e);S_CUTB(a)::QAR2(D)
- S(e);S_CUTQ(g)::S(E)
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