MESON Chess Problem Database
Problem Display
PID: 68297 (3rr3/1p1Q1q2/4BP2/8/2R2B2/5k1b/3P3R/2Kn3N w - - 0 1)
Sydenham, Colin Peter
The Problemist, 1984
#2
9 + 7
| 56 | The Problemist | 2006 |
| 15513 | Selected Chess Problems of Colin Sydenham | 2015 |
| 56 | The Problemist | 2017 |
SOLUTION
- SOUND
- Sets
- 1...Ra8
- 2.Qd5#
- 1...Rb8
- 2.Qd5#
- 1...Rc8
- 2.Qd5#
- 1...Bf1
- 2.Bg4#
- 1...Bg2
- 2.Bg4#
- 1...Bg4
- 2.Bxg4#
- 1...Sb2
- 2.Rf2#
- 1...Sf2
- 2.Rxf2#
- 1...Sc3
- 2.Rf2#
- 1...Se3
- 2.Rf2#
- 1...Ra8
- Tries
- 1.Be3?
- threat
- 2.Rf4#
- 1...Sxe3
- 2.Rf2#
- 1...Bg2
- 2.Bg4#
- 1...Sf2
- 2.Rxf2#
- 1...Rc8
- 2.Qd5#
- 1...Qxf6!
- threat
- 1.Bg3?
- threat
- 2.Rf4#
- 1...Bg2
- 2.Bg4#
- 1...Sf2
- 2.Rxf2#
- 1...Rc8
- 2.Qd5#
- 1...Qxf6!
- threat
- 1.Bg5?
- threat
- 2.Rf4#
- 1...Bg2
- 2.Bg4#
- 1...Sf2
- 2.Rxf2#
- 1...Rc8
- 2.Qd5#
- 1...Qxf6!
- threat
- 1.Bd6?
- threat
- 2.Rf4#
- 1...Qxf6
- 2.Qxb7#
- 1...Bg2
- 2.Bg4#
- 1...Sf2
- 2.Rxf2#
- 1...Rc8!
- threat
- 1.Bh6?
- threat
- 2.Rf4#
- 1...Bg2
- 2.Bg4#
- 1...Sf2
- 2.Rxf2#
- 1...Rc8
- 2.Qd5#
- 1...Qxf6!
- threat
- 1.Bc7?
- threat
- 2.Rf4#
- 1...Bg2
- 2.Bg4#
- 1...Sf2
- 2.Rxf2#
- 1...Qxf6!
- threat
- 1.Bb8?
- threat
- 2.Rf4#
- 1...Rxb8
- 2.Qd5#
- 1...Bg2
- 2.Bg4#
- 1...Sf2
- 2.Rxf2#
- 1...Rc8
- 2.Qd5#
- 1...Qxf6!
- threat
- 1.Bd5+?
- 1...Qxd5
- 2.Qxh3#
- 1...Re4!
- 1...Qxd5
- 1.Qc6+?
- 1...Rd5
- 2.Qxd5#
- 1...bxc6!
- 1...Rd5
- 1.Qd3+?
- 1...Se3
- 2.Rf2#
- 2.Qe2#
- 2.Qe4#
- 2.Qxe3#
- 1...Rxd3!
- 1...Se3
- 1.Qxb7+?
- 1...Rd5
- 2.Qxd5#
- 1...Qxb7!
- 1...Rd5
- 1.Be3?
- Keys
- 1.Be5!
- threat
- 2.Rf4#
- 1...Qxf6
- 2.Bd5#
- 1...Bg2
- 2.Bg4#
- 1...Sf2
- 2.Rxf2#
- 1...Rc8
- 2.Qd5#
- threat
- 1.Be5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 7
- Sets
- R(f);N_GUARD::QAB(I)
- R(f);N_GUARD,P_PINR(E)::QAB(I)
- B(c);N_GUARD::B(G)
- B(c);N_GUARD::B(G),XB(c)
- S(a);N_GUARD::R1(D)
- S(a);N_GUARD::R1(D),XS(a)
- Tries
- Try
- B(F);
- Threat
- R1(E)
- Vars
- S(a);N_GUARD,XB(F)::R1(D)
- B(c);N_GUARD::B(G)
- S(a);N_GUARD::R1(D),XS(a)
- R(f);N_GUARD,P_PINR(E)::QAB(I)
- Refutation
- Q(e);XP(H)
- Try
- B(F);
- Threat
- R1(E)
- Vars
- B(c);N_GUARD::B(G)
- S(a);N_GUARD::R1(D),XS(a)
- R(f);N_GUARD,P_PINR(E)::QAB(I)
- Refutation
- Q(e);XP(H)
- Try
- B(F);
- Threat
- R1(E)
- Vars
- B(c);N_GUARD::B(G)
- S(a);N_GUARD::R1(D),XS(a)
- R(f);N_GUARD,P_PINR(E)::QAB(I)
- Refutation
- Q(e);XP(H)
- Try
- B(F);
- Threat
- R1(E)
- Vars
- Q(e);N_GUARD,XP(H)::QAB(I),XP(d)
- B(c);N_GUARD::B(G)
- S(a);N_GUARD::R1(D),XS(a)
- Refutation
- R(f);P_PINR(E)
- Try
- B(F);
- Threat
- R1(E)
- Vars
- B(c);N_GUARD::B(G)
- S(a);N_GUARD::R1(D),XS(a)
- R(f);N_GUARD,P_PINR(E)::QAB(I)
- Refutation
- Q(e);XP(H)
- Try
- B(F);
- Threat
- R1(E)
- Vars
- B(c);N_GUARD::B(G)
- S(a);N_GUARD::R1(D),XS(a)
- Refutation
- Q(e);XP(H)
- Try
- B(F);
- Threat
- R1(E)
- Vars
- R(f);N_GUARD,XB(F)::QAB(I)
- B(c);N_GUARD::B(G)
- S(a);N_GUARD::R1(D),XS(a)
- R(f);N_GUARD,P_PINR(E)::QAB(I)
- Refutation
- Q(e);XP(H)
- Try
- B(G);CHECK
- Vars
- Q(e);XB(G)::QAR2(I),XB(c)
- Refutation
- R(g);P_SPINR(g)
- Try
- Q(I);CHECK
- Vars
- R(f);N_GUARD,P_SPINR(f)::QAB(I),XR(f)
- Refutation
- P(d);XQ(I)
- Try
- Q(I);CHECK
- Refutation
- R(f);XQ(I)
- Try
- Q(I);CHECK,XP(d)
- Vars
- R(f);N_GUARD,P_SPINR(f)::QAB(I),XR(f)
- Refutation
- Q(e);XQ(I)
- Try
- Actual
- B(F);
- Threat
- R1(E)
- Vars
- Q(e);N_GUARD,XP(H)::B(G)
- B(c);N_GUARD::B(G)
- S(a);N_GUARD::R1(D),XS(a)
- R(f);N_GUARD,P_PINR(E)::QAB(I)
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