MESON Chess Problem Database
Problem Display
PID: 97945 (2q5/4N1Bb/4N2p/8/R2pkpQ1/2p2pP1/2n2Pn1/5B1K w - - 0 1)
Hermanson, Halvar
Problemas, 1977
#2
9 + 10
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qa6
- 2.Sc5#
- 1...Qxe6
- 2.Qxe6#
- 1...Qb7
- 2.Sc5#
- 1...Qd7
- 2.Sc5#
- 1...Qc5
- 2.Sxc5#
- 1...Qa8
- 2.Sc5#
- 1...Qb8
- 2.Sc5#
- 1...Qd8
- 2.Sc5#
- 1...Qe8
- 2.Sc5#
- 1...Qf8
- 2.Sc5#
- 1...Qg8
- 2.Sc5#
- 1...Qh8
- 2.Sc5#
- 1...Bf5
- 2.Qxf5#
- 1...Bg6
- 2.Qxg6#
- 1...Bg8
- 2.Qf5#
- 2.Qg6#
- 1...Sa1
- 2.Rxd4#
- 1...Sce1
- 2.Rxd4#
- 1...Sa3
- 2.Rxd4#
- 1...Sce3
- 2.Rxd4#
- 1...Sge1
- 2.Qxf4#
- 1...Sge3
- 2.Qxf4#
- 1...Sh4
- 2.Qxf4#
- 1...h5
- 2.Sg5#
- 1...Qa6
- Tries
- 1.Sxf4?
- threat
- 2.Bd3#
- 1...Sxf4
- 2.Qxf4#
- 1...Qc4
- 2.Sxg2#
- 1...Qa6
- 2.Sxg2#
- 1...Sce1
- 2.Rxd4#
- 1...Sge1
- 2.Se6#
- 1...Sb4!
- threat
- 1.Be2?
- threat
- 2.Qxf3#
- 1...Sce1
- 2.Rxd4#
- 1...Sge1
- 2.Qxf4#
- 1...Sh4
- 2.Qxf4#
- 1...fxe2!
- threat
- 1.Ra5?
- threat
- 2.Re5#
- 1...Qxe6
- 2.Qxe6#
- 1...Qc5
- 2.Sxc5#
- 1...Qb8
- 2.Sc5#
- 1...Qc7!
- threat
- 1.Qh5?
- threat
- 2.Qd5#
- 2.Qe5#
- 1...Qc4
- 2.Qe5#
- 1...Qb7
- 2.Sc5#
- 2.Qe5#
- 1...Qd7
- 2.Sc5#
- 2.Qe5#
- 1...Qc5
- 2.Sxc5#
- 1...Qc6
- 2.Qe5#
- 1...Qc7
- 2.Qd5#
- 1...Qa8
- 2.Sc5#
- 2.Qe5#
- 1...Qb8
- 2.Sc5#
- 2.Qd5#
- 1...Qd8
- 2.Sc5#
- 2.Qe5#
- 1...Bf5
- 2.Qxf5#
- 1...Sce3
- 2.Rxd4#
- 2.Qe5#
- 1...Sb4
- 2.Qe5#
- 1...Sge3
- 2.Qe5#
- 1...Qxe6!
- threat
- 1.Qg5?
- threat
- 2.Qd5#
- 2.Qe5#
- 1...hxg5
- 2.Sxg5#
- 1...Qc4
- 2.Qe5#
- 1...Qb7
- 2.Sc5#
- 2.Qe5#
- 1...Qd7
- 2.Sc5#
- 2.Qe5#
- 1...Qc5
- 2.Sxc5#
- 1...Qc6
- 2.Qe5#
- 1...Qc7
- 2.Qd5#
- 1...Qa8
- 2.Sc5#
- 2.Qe5#
- 1...Qb8
- 2.Sc5#
- 2.Qd5#
- 1...Qd8
- 2.Sc5#
- 2.Qe5#
- 1...Bf5
- 2.Qxf5#
- 1...Sce3
- 2.Rxd4#
- 2.Qe5#
- 1...Sb4
- 2.Qe5#
- 1...Sge3
- 2.Qxf4#
- 2.Qe5#
- 1...Qxe6!
- threat
- 1.Sxf4?
- Keys
- 1.Sxd4!
- threat
- 2.Qxf3#
- 1...Qxg4
- 2.Sxc2#
- 1...Sxd4
- 2.Rxd4#
- 1...Sce1
- 2.Sdc6#
- 1...Sge1
- 2.Qxf4#
- 1...Sh4
- 2.Qxf4#
- threat
- 1.Sxd4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 2
- REMOVED MATES = 19
- Sets
- Q(j);N_GUARD::S(G)
- Q(j);OGATE,XS(G)::QAR2(F),XQ(j)
- Q(j);N_GUARD::S(G),XQ(j)
- B(i);N_GUARD::QAB1(F),XB(i)
- B(i);N_GUARD::QAB(F),XB(i)
- S(a);N_GUARD::R1(E),XP(e)
- S(b);N_GUARD::QAR1(F),XP(g)
- P(h);N_GUARD::S(G)
- Tries
- Try
- S(G);XP(g)
- Threat
- B(A)
- Vars
- S(b);OGATE,P_SPINS(b),XS(G)::QAR1(F),XS(b)
- Q(j);N_GUARD,N_SPINP(e)::QAR(F)+S(G),XS(b)
- Q(j);N_GUARD::QAR(F)+S(G),XS(b)
- S(a);N_GUARD::R1(E),XP(e)
- S(b);N_GUARD::QAR(F)+S(G)
- Refutation
- S(a);N_SPINP(e)
- Try
- B(A);
- Threat
- QAB1(F),XP(d)
- Vars
- S(a);N_GUARD::R1(E),XP(e)
- S(b);N_GUARD::QAR1(F),XP(g)
- Refutation
- P(d);XB(A)
- Try
- R(E);N_PINP(e),P_PINP(g)
- Threat
- R1(E)
- Vars
- Q(j);OGATE,XS(G)::QAR2(F),XQ(j)
- Q(j);N_GUARD::S(G),XQ(j)
- Q(j);N_GUARD::S(G)
- Refutation
- Q(j);
- Try
- Q(F);
- Threat
- DUALS(2)
- Vars
- Q(j);N_SPINP(e)::QAR1(F)
- Q(j);N_GUARD::S(G),XQ(j)
- Q(j);::QAR1(F)
- Q(j);::QAB1(F)
- B(i);N_GUARD::QAB1(F),XB(i)
- S(a);N_SPINP(e)::QAR1(F)
- S(b);::QAR1(F)
- Refutation
- Q(j);XS(G)
- Try
- Q(F);
- Threat
- DUALS(2)
- Vars
- P(h);XQ(F)::S(G),XP(h)
- Q(j);N_SPINP(e)::QAR1(F)
- Q(j);N_GUARD::S(G),XQ(j)
- Q(j);::QAR1(F)
- Q(j);::QAB1(F)
- B(i);N_GUARD::QAB1(F),XB(i)
- S(a);N_SPINP(e)::QAR1(F)
- Refutation
- Q(j);XS(G)
- Try
- Actual
- S(G);P_PINP(g),XP(e)
- Threat
- QAB1(F),XP(d)
- Vars
- Q(j);N_GUARD,N_SPINP(g),XQ(F)::R(E)+S(G),XS(a)
- S(a);OGATE,P_SPINS(a),XS(G)::R1(E),XS(a)
- S(a);N_GUARD::R(E)+S(G)
- S(b);N_GUARD::QAR1(F),XP(g)
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