MESON Chess Problem Database
Problem Display
PID: 82229 (3N3q/2R1R2b/3p4/1p1N4/2PkP3/B2p2Q1/1K4p1/6b1 w - - 0 1)
Ahues, Herbert Siegfried Oskar
Rochade Europa, 1980
#2
9 + 8
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qg7
- 2.Qxg7#
- 1...Qxd8
- 2.Qg7#
- 1...Qe8
- 2.Qg7#
- 1...Bf2
- 2.Qxf2#
- 1...Bh2
- 2.Qf2#
- 2.Qe3#
- 1...Be3
- 2.Qxe3#
- 1...Bxe4
- 2.Se6#
- 1...d2
- 2.Qc3#
- 1...bxc4
- 2.Sc6#
- 1...Qg7
- Tries
- 1.Ka1?
- threat
- 2.Bb2#
- 1...bxc4
- 2.Sc6#
- 1...Qe5!
- threat
- 1.Kb1?
- threat
- 2.Bb2#
- 1...bxc4
- 2.Sc6#
- 1...Qe5!
- threat
- 1.Ka2?
- threat
- 2.Bb2#
- 1...bxc4
- 2.Sc6#
- 1...Qe5!
- threat
- 1.Kb3?
- threat
- 2.Sc6#
- 2.Bb2#
- 1...bxc4+
- 2.Rxc4#
- 1...Qxd8
- 2.Bb2#
- 2.Qg7#
- 1...Qe8
- 2.Bb2#
- 2.Qg7#
- 1...b4
- 2.Bb2#
- 1...Qe5!
- threat
- 1.Sc3?
- threat
- 2.Sxb5#
- 2.Se6#
- 1...Qxd8
- 2.Sxb5#
- 1...bxc4
- 2.Sb5#
- 2.Sc6#
- 2.Se6#
- 1...Qf6
- 2.Sxb5#
- 1...Qe8
- 2.Se6#
- 1...Qg8
- 2.Sxb5#
- 1...Bf5
- 2.Sxb5#
- 1...Bg8
- 2.Sxb5#
- 1...b4
- 2.Sb5#
- 2.Se6#
- 1...Qe5!
- threat
- 1.Sf4?
- threat
- 2.Qxd3#
- 1...Bxe4
- 2.Sfe6#
- 1...bxc4
- 2.Sc6#
- 1...d2
- 2.Se2#
- 2.Qc3#
- 2.Qd3#
- 1...Be3!
- threat
- 1.Qe1?
- threat
- 2.Qc3#
- 2.Qxg1#
- 1...d2
- 2.Qxd2#
- 1...Qf6
- 2.Qc3#
- 1...Qf8
- 2.Qc3#
- 1...Bf2
- 2.Qxf2#
- 2.Qc3#
- 1...Bh2
- 2.Qf2#
- 2.Qc3#
- 2.Qe3#
- 1...Be3
- 2.Qc3#
- 2.Qxe3#
- 1...b4
- 2.Qxg1#
- 1...Qe5!
- threat
- 1.Qf4?
- threat
- 2.Se6#
- 1...Qxd8
- 2.Qf6#
- 1...d2
- 2.Qxd2#
- 1...Qf6
- 2.Qxf6#
- 1...Qg8
- 2.Qf6#
- 1...Bf5
- 2.exf5#
- 1...Bg8
- 2.e5#
- 1...Qe5!
- threat
- 1.Qxd6?
- threat
- 2.Qc5#
- 2.Qb6#
- 1...Qe5
- 2.Qxe5#
- 1...Qf6
- 2.Qc5#
- 2.Qxf6#
- 1...d2!
- threat
- 1.Ka1?
- Keys
- 1.Sb4!
- threat
- 2.Qxd3#
- 1...Bxe4
- 2.Se6#
- 1...bxc4
- 2.Sbc6#
- 1...Be3
- 2.Qxd6#
- 1...d2
- 2.Sc2#
- 2.Qc3#
- 2.Qd3#
- threat
- 1.Sb4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 0
- REMOVED MATES = 5
- Sets
- Q(h);N_GUARD::QAB(C),XQ(h)
- Q(h);N_GUARD,XS(I)::QAB(C)
- Q(h);N_GUARD::QAB(C)
- B(a);N_GUARD::QAB(C),XB(a)
- B(a);N_GUARD::QAB1(C),XB(a)
- B(g);SBLOCK,XP(E)::S(I)
- P(c);OGATE::QAB1(C)
- P(e);SBLOCK,XP(D)::S(I)
- Tries
- Try
- K(A);S_FLIGHT
- Threat
- B(B)
- Vars
- P(e);SBLOCK,XP(D)::S(I)
- Refutation
- Q(h);
- Try
- K(A);P-FLIGHT
- Threat
- B(B)
- Vars
- P(e);SBLOCK,XP(D)::S(I)
- Refutation
- Q(h);
- Try
- K(A);P-FLIGHT
- Threat
- B(B)
- Vars
- P(e);SBLOCK,XP(D)::S(I)
- Refutation
- Q(h);
- Try
- K(A);P-FLIGHT
- Threat
- DUALS(2)
- Vars
- P(e);CHECK,OGATE,XP(D)::R1(G),XP(e)
- P(e);::B(B)
- Refutation
- Q(h);
- Try
- S(F);
- Threat
- DUALS(2)
- Vars
- Q(h);XS(I)::S(F),XP(e)
- Q(h);::S(F),XP(e)
- Q(h);::S(I)
- B(g);::S(F),XP(e)
- Refutation
- Q(h);
- Try
- S(F);
- Threat
- QAR1(C),XP(c)
- Vars
- B(g);SBLOCK,XP(E)::S(F)
- P(e);SBLOCK,XP(D)::S(I)
- Refutation
- B(a);
- Try
- Q(C);
- Threat
- DUALS(2)
- Vars
- P(c);OGATEB::QAR2(C),XP(c)
- Q(h);::QAB1(C)
- P(e);::QAB(C),XB(a)
- Refutation
- Q(h);
- Try
- Q(C);
- Threat
- S(I)
- Vars
- Q(h);N_GUARD,XS(I)::QAB(C)
- P(c);OGATEB::QAR2(C),XP(c)
- Q(h);N_GUARD::QAB(C),XQ(h)
- Q(h);N_GUARD::QAB(C)
- B(g);OGATE::QAR(C)+P(E),XB(g)
- B(g);N_GUARD::QAR(C)+P(E)
- Refutation
- Q(h);
- Try
- Q(C);XP(f)
- Threat
- DUALS(2)
- Vars
- Q(h);N_GUARD::QAB1(C),XQ(h)
- Refutation
- P(c);
- Try
- Actual
- S(F);
- Threat
- QAR1(C),XP(c)
- Vars
- B(g);SBLOCK,XP(E)::S(I)
- P(e);SBLOCK,XP(D)::S(F)
- B(a);SBLOCK::QAR2(C),XP(f)
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