MESON Chess Problem Database
Problem Display
PID: 146672 (2b2r2/3pb3/7Q/2k1Np1R/2BN4/qPBP3K/7P/3r4 w - - 0 1)
Bicknell, Stephen
Australian Chess Problem Magazine, 1993
#2
10 + 8
SOLUTION
- SOUND
- Sets
- 1...Qc1
- 2.b4#
- 1...Qa1
- 2.b4#
- 1...Qa2
- 2.b4#
- 1...Qxb3
- 2.Sxb3#
- 1...Qa6
- 2.b4#
- 1...Qa7
- 2.b4#
- 1...Qa8
- 2.b4#
- 1...Rxd3+
- 2.Sxd3#
- 1...Ba6
- 2.Sxd7#
- 1...Bb7
- 2.Sxd7#
- 1...f4
- 2.Sxd7#
- 1...d5
- 2.Qc6#
- 1...Qc1
- Tries
- 1.Sxf5?
- threat
- 2.Qe3#
- 1...Rxd3+
- 2.Sxd3#
- 1...Qc1
- 2.b4#
- 1...Re1
- 2.d4#
- 1...Bg5
- 2.Qd6#
- 1...d5
- 2.Qc6#
- 1...Rxf5!
- threat
- 1.Sxf5?
- Keys
- 1.Sb5!
- threat
- 2.Qe3#
- 1...Rxd3+
- 2.Sxd3#
- 1...Qc1
- 2.b4#
- 1...Re1
- 2.d4#
- 1...Bg5
- 2.Qd6#
- 1...f4
- 2.Sxd7#
- 1...d5
- 2.Qc6#
- threat
- 1.Sb5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 8
- Sets
- Q(b);N_GUARD::P(B)
- Q(b);XP(B)::S(G),XQ(b)
- R(a);CHECK,XP(D)::S(H),XR(a)
- B(g);N_GUARD::S(H),XP(e)
- P(d);::R(I)+S(H),DCHECK,XP(e)
- P(e);N_GUARD::QAR1(J)
- Tries
- Try
- S(G);XP(d)
- Threat
- QAB(J)
- Vars
- R(a);CHECK,XP(D)::S(H),XR(a)
- Q(b);N_GUARD::P(B)
- R(a);N_GUARD::P(D)
- B(f);N_GUARD::QAB1(J)
- P(e);N_GUARD,P_PINS(G)::QAR1(J)
- Refutation
- R(h);XS(G)
- Try
- Actual
- S(G);
- Threat
- QAB(J)
- Vars
- R(a);CHECK,XP(D)::S(H),XR(a)
- Q(b);N_GUARD::P(B)
- R(a);N_GUARD::P(D)
- B(f);N_GUARD::QAB1(J)
- P(d);::R(I)+S(H),DCHECK,XP(e)
- P(e);N_GUARD::QAR1(J)
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