MESON Chess Problem Database
Problem Display
PID: 22549 (8/2Pp2pK/6Rp/1p3k2/6N1/Q3pP2/7B/bnq1n1r1 w - - 0 1)
Knuppert, Hugo
1st Prize, Deutsche Schachblatter, 1985
#2
7 + 11
| 3748 | FIDE Album (1983-1985) | 1992 |
SOLUTION
- SOUND
- Sets
- 1...Qb2
- 2.Sxe3#
- 1...Qd1
- 2.Sxe3#
- 1...Qc2
- 2.Sxe3#
- 1...Qc4
- 2.Sxe3#
- 1...Qc6
- 2.Sxe3#
- 1...Qxc7
- 2.Sxe3#
- 1...Sd2
- 2.Sxe3#
- 1...Sc3
- 2.Qf8#
- 1...Sc2
- 2.Qd3#
- 1...Sg2
- 2.Qd3#
- 1...Sd3
- 2.Qxd3#
- 1...Sxf3
- 2.Qd3#
- 1...Qb2
- Tries
- 1.Qb4?
- threat
- 2.Qe4#
- 2.Qf4#
- 1...Qxc7
- 2.Sxe3#
- 2.Qe4#
- 1...Rxg4
- 2.Qxg4#
- 2.fxg4#
- 1...Sxf3
- 2.Qf4#
- 1...Bf6
- 2.Qe4#
- 1...Qc2
- 2.Sxe3#
- 2.Qf4#
- 1...Qc4
- 2.Sxe3#
- 1...Qc6
- 2.Sxe3#
- 2.Qf4#
- 1...Rg3
- 2.Qe4#
- 1...Be5
- 2.Qe4#
- 1...Sd2
- 2.Sxe3#
- 2.Qf4#
- 1...Sc3
- 2.Qf8#
- 2.Qf4#
- 1...Sg2
- 2.Qe4#
- 1...Sd3
- 2.Qe4#
- 1...e2
- 2.Qe4#
- 1...d5
- 2.Qf4#
- 1...Bd4!
- threat
- 1.Qc5+?
- 1...Be5
- 2.Qxe5#
- 1...d5
- 2.c8Q#
- 2.c8B#
- 1...Qxc5!
- 1...Be5
- 1.Qd6?
- threat
- 2.Qf4#
- 2.Qxd7#
- 1...Qxc7
- 2.Sxe3#
- 1...Rxg4
- 2.Qxd7#
- 1...Sxf3
- 2.Qf4#
- 2.Qd3#
- 1...Qd2
- 2.Qf4#
- 1...Qd1
- 2.Sxe3#
- 2.Qf4#
- 1...Qc4
- 2.Sxe3#
- 1...Qc6
- 2.Sxe3#
- 2.Qf4#
- 1...Be5
- 2.Qxe5#
- 2.Qxd7#
- 1...Bf6
- 2.Qxd7#
- 1...Sg2
- 2.Qd3#
- 2.Qxd7#
- 1...Sd3
- 2.Qxd3#
- 2.Qxd7#
- 1...e2
- 2.Qxd7#
- 1...Rg3!
- threat
- 1.Qe7?
- threat
- 2.Qe4#
- 2.Qxd7#
- 1...Qxc7
- 2.Sxe3#
- 2.Qe4#
- 1...Rxg4
- 2.Qxd7#
- 2.fxg4#
- 1...Rg3
- 2.Qe4#
- 1...Qd2
- 2.Qe4#
- 1...Qd1
- 2.Sxe3#
- 2.Qe4#
- 1...Qc2
- 2.Sxe3#
- 2.Qxd7#
- 1...Qc4
- 2.Sxe3#
- 1...Qc6
- 2.Sxe3#
- 1...Be5
- 2.Qxe5#
- 2.Qxd7#
- 1...Sd2
- 2.Sxe3#
- 2.Qxd7#
- 1...Sc3
- 2.Qf8#
- 2.Qe5#
- 2.Qxd7#
- 2.Qf7#
- 1...d5
- 2.Qe6#
- 2.Qd7#
- 1...d6
- 2.Qe4#
- 2.Qe6#
- 2.Qd7#
- 1...Sxf3!
- threat
- 1.Qxe3?
- threat
- 2.Qe4#
- 1...Qxe3
- 2.Sxe3#
- 1...Rxg4
- 2.fxg4#
- 1...Sxf3
- 2.Qd3#
- 1...Qc2
- 2.Qf4#
- 1...Qc6
- 2.Qf4#
- 1...Sd2
- 2.Qf4#
- 1...Sc3
- 2.Qe5#
- 1...d5
- 2.Qe6#
- 1...Qc4!
- threat
- 1.Qb4?
- Keys
- 1.Qa8!
- threat
- 2.Qe4#
- 1...Rxg4
- 2.fxg4#
- 1...Sxf3
- 2.Qxf3#
- 1...Qc2
- 2.Sxe3#
- 1...Qc4
- 2.Sxe3#
- 1...Qc6
- 2.Sxe3#
- 1...Sd2
- 2.Sxe3#
- 1...Sc3
- 2.Qf8#
- 1...d5
- 2.Qc8#
- threat
- 1.Qa8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 2
- REMOVED MATES = 6
- Sets
- Q(c);N_GUARD::S(D),XP(f)
- Q(c);N_GUARD,XP(F)::S(D),XP(f)
- S(b);S_CUTQ(c)::S(D),XP(f)
- S(b);S_CUTB(a)::QAR(B)
- S(d);N_GUARD::QAB(B)
- S(d);N_GUARD::QAB(B),XS(d)
- S(d);N_GUARD,XP(C)::QAB(B)
- Tries
- Try
- Q(B);
- Threat
- DUALS(2)
- Vars
- S(d);XP(C)::QAR1(B)
- B(a);::QAB1(B)
- Q(c);N_GUARD::S(D),XP(f)
- R(e);::QAB1(B)
- S(d);::QAB1(B)
- P(f);::QAB1(B)
- P(j);::QAR1(B)
- Refutation
- B(a);
- Try
- Q(B);CHECK
- Vars
- B(a);N_GUARD,P_SPINB(a)::QAR1(B),XB(a)
- P(j);P_SPINP(j),S_CUTB(a),S_CUTQ(c)::P=Q
- Refutation
- Q(c);XQ(B)
- Try
- Q(B);
- Threat
- DUALS(2)
- Vars
- Q(c);N_GUARD,XP(F)::S(D),XP(f)
- R(e);XS(D)::QAB(B),XP(j)
- Q(c);::QAR1(B)
- Q(c);N_GUARD::S(D),XP(f)
- B(a);::QAB(B),XP(j)
- P(f);::QAB(B),XP(j)
- Refutation
- R(e);
- Try
- Q(B);
- Threat
- DUALS(2)
- Vars
- R(e);::QAB1(B)
- Q(c);::QAB1(B)
- Q(c);N_GUARD::S(D),XP(f)
- Refutation
- S(d);XP(C)
- Try
- Q(B);XP(f)
- Threat
- QAB1(B)
- Vars
- Q(c);XQ(B)::S(D),XQ(c)
- R(e);OGATE,XS(D)::P(C),XR(e)
- S(d);N_GUARD,XP(C)::QAB(B)
- Q(c);N_GUARD::QAR1(B)
- S(b);S_CUTQ(c)::QAR1(B)
- S(b);S_CUTB(a)::QAR1(B)
- P(j);N_GUARD::QAB1(B)
- Refutation
- Q(c);
- Try
- Actual
- Q(B);
- Threat
- QAB1(B)
- Vars
- R(e);OGATE,XS(D)::P(C),XR(e)
- S(d);OGATE,XP(C)::QAR2(B),XS(d)
- Q(c);N_GUARD::S(D),XP(f)
- S(b);S_CUTQ(c)::S(D),XP(f)
- S(b);S_CUTB(a)::QAR(B)
- P(j);OGATEB::QAB(B)
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