MESON Chess Problem Database
Problem Display
PID: 29800 (3K2R1/7n/4p1N1/2N2kB1/3p2R1/2Q2B1b/2n5/5q2 w - - 0 1)
Keller, Michael
Zirkwitz, Thorsten
1st Prize, diagrammes, 2000
#2
8 + 7
| 145 | StrateGems | 2003 |
| 23 | Die Schwalbe | 2008 |
SOLUTION
- SOUND
- Sets
- 1...Qg2
- 2.Qd3#
- 1...Qd3
- 2.Qxd3#
- 1...Qa1
- 2.Qd3#
- 1...Qb1
- 2.Qd3#
- 1...Qc1
- 2.Qd3#
- 1...Qg1
- 2.Qd3#
- 1...Qh1
- 2.Qd3#
- 1...Qf2
- 2.Qd3#
- 1...Qxf3
- 2.Qxf3#
- 1...Sxg5
- 2.Rf4#
- 1...d3
- 2.Sh4#
- 2.Se7#
- 2.Qe5#
- 1...e5
- 2.Sh4#
- 2.Se7#
- 1...Qg2
- Tries
- 1.Sd3?
- threat
- 2.Sh4#
- 2.Se7#
- 1...Qxd3
- 2.Qxd3#
- 1...Sxg5
- 2.Rf4#
- 1...e5
- 2.Qc8#
- 1...Qe1
- 2.Se7#
- 1...Qf2
- 2.Se7#
- 1...Qxf3!
- threat
- 1.Se4?
- threat
- 2.Sg3#
- 2.Sd6#
- 2.Rf4#
- 1...Qxf3
- 2.Qxf3#
- 1...Sxg5
- 2.Rf4#
- 2.Rxg5#
- 1...e5
- 2.Qc8#
- 1...Qg2
- 2.Sd6#
- 2.Rf4#
- 1...Qa6
- 2.Sg3#
- 2.Rf4#
- 1...Qc1
- 2.Sg3#
- 2.Sd6#
- 1...Qe1
- 2.Sd6#
- 2.Rf4#
- 1...Qg1
- 2.Sd6#
- 2.Rf4#
- 1...Qf2
- 2.Sd6#
- 2.Rf4#
- 1...Bxg4!
- threat
- 1.Sd7?
- threat
- 2.Sh4#
- 2.Se7#
- 1...Qxf3
- 2.Qxf3#
- 1...Qe1
- 2.Se7#
- 1...Qf2
- 2.Se7#
- 2.Qd3#
- 1...e5!
- threat
- 1.Be7?
- threat
- 2.Rf4#
- 1...Qxf3
- 2.Qxf3#
- 1...Bxg4
- 2.Be4#
- 1...Qc1
- 2.Qd3#
- 1...e5
- 2.Sh4#
- 1...Sf6!
- threat
- 1.Re4?
- threat
- 2.Sh4#
- 2.Se7#
- 2.Re5#
- 1...Qxf3
- 2.Sh4#
- 2.Se7#
- 1...Sxg5
- 2.Rf4#
- 1...Qe2
- 2.Sh4#
- 2.Se7#
- 1...Qe1
- 2.Se7#
- 1...Qf2
- 2.Se7#
- 2.Re5#
- 1...e5
- 2.Sh4#
- 2.Se7#
- 2.Rxe5#
- 1...Kxg5!
- threat
- 1.Qxd4?
- threat
- 2.Sh4#
- 2.Se7#
- 2.Qe5#
- 2.Qe4#
- 2.Qf4#
- 1...Qxf3
- 2.Sh4#
- 2.Se7#
- 1...Bxg4
- 2.Sh4#
- 2.Se7#
- 2.Qe5#
- 2.Qf4#
- 2.Qxg4#
- 1...Sxg5
- 2.Sh4#
- 2.Se7#
- 2.Rf4#
- 2.Qe5#
- 2.Qf4#
- 1...Qe2
- 2.Sh4#
- 2.Se7#
- 2.Qf4#
- 1...Qd3
- 2.Sh4#
- 2.Se7#
- 2.Qxd3#
- 1...Qc4
- 2.Sh4#
- 2.Se7#
- 2.Qe5#
- 1...Qa1
- 2.Sh4#
- 2.Se7#
- 2.Qd3#
- 2.Qe4#
- 2.Qf4#
- 1...Qc1
- 2.Sh4#
- 2.Se7#
- 2.Qe5#
- 2.Qd3#
- 2.Qe4#
- 1...Qd1
- 2.Sh4#
- 2.Se7#
- 1...Qe1
- 2.Se7#
- 2.Qf4#
- 1...Qf2
- 2.Se7#
- 2.Qe5#
- 2.Qd3#
- 2.Qe4#
- 2.Qf4#
- 1...Sf6
- 2.Sh4#
- 2.Se7#
- 2.Qe5#
- 2.Qxf6#
- 2.Qf4#
- 1...e5
- 2.Sh4#
- 2.Se7#
- 2.Qxe5#
- 2.Qe4#
- 2.Qd7#
- 1...Sxd4!
- threat
- 1.Qxc2+?
- 1...Qd3
- 2.Qxd3#
- 1...d3!
- 1...Qd3
- 1.Sd3?
- Keys
- 1.Bh4!
- threat
- 2.Rf4#
- 1...Qxf3
- 2.Qxf3#
- 1...Bxg4
- 2.Be4#
- 1...Qc1
- 2.Qd3#
- 1...e5
- 2.Se7#
- threat
- 1.Bh4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 8
- Sets
- Q(a);N_GUARD::QAB(A)
- Q(a);N_GUARD::QAB(A),XQ(a)
- Q(a);OGATE,XB(B)::QAR2(A),XQ(a)
- S(g);SBLOCK,XB(E)::R1(C)
- Tries
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- Q(a);OGATE,XS(D)::QAB(A),XQ(a)
- S(g);SBLOCK,XB(E)::R1(C)
- P(f);OGATEB::QAB(A)
- Q(a);::S(F)
- Refutation
- Q(a);XB(B)
- Try
- S(D);
- Threat
- DUALS(3)
- Vars
- Q(a);OGATE,XB(B)::QAR2(A),XQ(a)
- P(f);OGATEB::QAB(A)
- Refutation
- B(c);XR(C)
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- Q(a);OGATE,XB(B)::QAR2(A),XQ(a)
- Q(a);::S(F)
- Refutation
- P(f);
- Try
- B(E);
- Threat
- R1(C)
- Vars
- Q(a);OGATE,XB(B)::QAR2(A),XQ(a)
- B(c);SBLOCK,XR(C)::B(B)
- Q(a);N_GUARD::QAB(A)
- P(f);SBLOCK::S(F)
- Refutation
- S(g);
- Try
- R(C);
- Threat
- DUALS(3)
- Vars
- S(g);SBLOCK,XB(E)::R1(C)
- Q(a);::S(F)
- Refutation
- K(e);P-FLIGHT,XB(E)
- Try
- Q(A);XP(d)
- Threat
- DUALS(5)
- Refutation
- S(b);XQ(A)
- Try
- Q(A);CHECK,XS(b)
- Vars
- Q(a);N_GUARD,P_SPINQ(a)::QAB(A),XQ(a)
- Refutation
- P(d);P_SPINP(d)
- Try
- Actual
- B(E);
- Threat
- R1(C)
- Vars
- Q(a);OGATE,XB(B)::QAR2(A),XQ(a)
- B(c);SBLOCK,XR(C)::B(B)
- Q(a);N_GUARD::QAB(A)
- P(f);SBLOCK::S(F)
Developed and maintained by Brian Stephenson.
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