MESON Chess Problem Database
Problem Display
PID: 52571 (5q2/2Bpn3/8/p1PpnNPp/Rb3k1P/8/4K3/1Q2N1RB w - - 0 1)
Groeneveld, Cornelis
Prins, Hendrik
1st HM., The Problemist, 1989
#2
11 + 9
| 4827 | FIDE Album (1989-1991) | 1997 |
SOLUTION
- SOUND
- Sets
- 1...Qxf5
- 2.Qc1#
- 1...Sxf5
- 2.Sd3#
- 1...d4
- 2.Qe4#
- 1...Qxf5
- Tries
- 1.Sd4?
- threat
- 2.Sd3#
- 1...Bxe1
- 2.Se6#
- 1...d6
- 2.Se6#
- 1...Qf5!
- threat
- 1.Sd6?
- threat
- 2.Qc1#
- 1...Sd3
- 2.Sxd3#
- 1...Sf3
- 2.Sd3#
- 1...Sc4
- 2.Sd3#
- 1...Sg4
- 2.Sd3#
- 1...S5c6
- 2.Sd3#
- 1...S5g6
- 2.Sd3#
- 1...Sf7
- 2.Sd3#
- 1...d4
- 2.Qe4#
- 1...Sf5!
- threat
- 1.Sh6?
- threat
- 2.Sd3#
- 2.Qc1#
- 1...Qf5
- 2.Qc1#
- 1...Sf5
- 2.Sd3#
- 1...d4
- 2.Sd3#
- 2.Qe4#
- 1...d6
- 2.Qc1#
- 1...Qxh6!
- threat
- 1.Sxe7?
- threat
- 2.Sd3#
- 2.Sxd5#
- 2.Sg6#
- 2.Qc1#
- 1...Qh6
- 2.Sd3#
- 2.Sxd5#
- 2.Qf5#
- 2.Qc1#
- 1...Qg7
- 2.Sd3#
- 2.Sxd5#
- 2.Qf5#
- 2.Qc1#
- 1...Qf5
- 2.Sxd5#
- 2.Qxf5#
- 2.Qc1#
- 1...Qf6
- 2.Sd3#
- 2.Sxd5#
- 2.Qc1#
- 1...Qf7
- 2.Sd3#
- 2.Qc1#
- 1...Qa8
- 2.Sd3#
- 2.Sg6#
- 2.Qf5#
- 2.Qc1#
- 1...Qe8
- 2.Sd3#
- 2.Sxd5#
- 2.Qf5#
- 2.Qc1#
- 1...Qg8
- 2.Sd3#
- 2.Qf5#
- 2.Qc1#
- 1...d4
- 2.Sd3#
- 2.Sd5#
- 2.Sg6#
- 2.Qe4#
- 1...d6
- 2.Sxd5#
- 2.Qc1#
- 1...Qxe7!
- threat
- 1.Sg7?
- threat
- 2.Sd3#
- 2.Sxh5#
- 2.Qc1#
- 1...Qf5
- 2.Sxh5#
- 2.Qc1#
- 1...Qf7
- 2.Sd3#
- 2.Qc1#
- 1...Qe8
- 2.Sd3#
- 2.Qc1#
- 1...Qh8
- 2.Sd3#
- 2.Qc1#
- 1...Sf5
- 2.Sd3#
- 2.Sxh5#
- 1...d4
- 2.Sd3#
- 2.Sxh5#
- 2.Qe4#
- 1...d6
- 2.Sxh5#
- 2.Se6#
- 2.Qc1#
- 1...Qxg7!
- threat
- 1.Bxd5?
- threat
- 2.Qe4#
- 1...Qxf5
- 2.Qc1#
- 1...Sxd5!
- threat
- 1.Rg4+?
- 1...hxg4
- 2.Sg2#
- 1...Kxg4!
- 1...hxg4
- 1.Rxb4+?
- 1...d4
- 2.Rxd4#
- 2.Qe4#
- 1...axb4!
- 1...d4
- 1.Sd4?
- Keys
- 1.Bf3!
- threat
- 2.Sg2#
- 1...Qxf5
- 2.Qc1#
- 1...Sxf5
- 2.Sd3#
- threat
- 1.Bf3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 1
- Sets
- Q(i);SBLOCK,XS(I)::QAB(A)
- S(h);SBLOCK,XS(I)::S(B)
- P(d);N_GUARD,N_SPINB(a)::QAR1(A)
- Tries
- Try
- S(I);N_PINB(a)
- Threat
- S(B)
- Vars
- B(a);XS(B)::R(F)+S(I),DCHECK
- P(g);N_GUARD,N_SPINS(e)::S(I)
- Refutation
- Q(i);
- Try
- S(I);N_PINS(e)
- Threat
- QAB(A)
- Vars
- S(e);N_GUARD::S(B),XS(e)
- S(e);N_GUARD::S(B)
- S(e);N_GUARD,N_SPINB(a)::S(B)
- P(d);N_GUARD,N_SPINB(a)::QAR1(A)
- Refutation
- S(h);
- Try
- S(I);
- Threat
- DUALS(2)
- Vars
- Q(i);::QAB(A)
- S(h);::S(B)
- P(g);N_SPINS(e)::QAB(A)
- Refutation
- Q(i);XS(I)
- Try
- S(I);XS(h)
- Threat
- DUALS(4)
- Refutation
- Q(i);XS(I)
- Try
- S(I);
- Threat
- DUALS(3)
- Refutation
- Q(i);XS(I)
- Try
- B(D);XP(d)
- Threat
- QAR1(A)
- Vars
- Q(i);SBLOCK,XS(I)::QAB(A)
- Refutation
- S(h);XB(D)
- Try
- R(C);CHECK
- Vars
- P(f);SBLOCK,XR(C)::S(B)
- Refutation
- K(b);N_SPINS(e),P-FLIGHT,XR(C)
- Try
- R(F);CHECK,XB(a)
- Refutation
- P(c);XR(F)
- Try
- Actual
- B(D);
- Threat
- S(B)
- Vars
- Q(i);SBLOCK,XS(I)::QAB(A)
- S(h);SBLOCK,XS(I)::S(B)
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