MESON Chess Problem Database
Problem Display
PID: 176496 (3b4/q7/bn2N1R1/3p1k2/3B1PR1/pQ3P2/2P5/K7 w - - 0 1)
Stadelmeier, Gerhard
Schach-Echo, 1984
#2
9 + 7
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Qb8
- 2.Sg7#
- 1...Qg7
- 2.Sxg7#
- 1...Qa8
- 2.Sg7#
- 1...Bd3
- 2.Qxd3#
- 1...Bb7
- 2.Sg7#
- 2.Qd3#
- 1...Bc8
- 2.Qd3#
- 1...Bg5
- 2.R4xg5#
- 1...Bf6
- 2.Rxf6#
- 1...Bc7
- 2.Sg7#
- 2.R4g5#
- 2.Rf6#
- 1...Be7
- 2.Sg7#
- 1...Sa4
- 2.Qxd5#
- 1...Sc4
- 2.Qd3#
- 1...Sd7
- 2.Sg7#
- 1...Sa8
- 2.Qxd5#
- 1...Sc8
- 2.Qxd5#
- 1...Qb8
- Tries
- 1.Bg1?
- threat
- 2.Sd4#
- 1...Qg7+
- 2.Sxg7#
- 1...Bg5
- 2.R4xg5#
- 1...Sa4
- 2.Qxd5#
- 1...Sc4
- 2.Qd3#
- 1...Sd7
- 2.Sg7#
- 1...Sa8
- 2.Qxd5#
- 1...Sc8
- 2.Qxd5#
- 1...d4
- 2.Sxd4#
- 1...Bf6+!
- threat
- 1.Bb2?
- threat
- 2.Sd4#
- 1...Bg5
- 2.R4xg5#
- 1...Bf6
- 2.Rxf6#
- 1...Qg7
- 2.Sxg7#
- 1...Sa4
- 2.Qxd5#
- 1...Sc4
- 2.Qd3#
- 1...Sd7
- 2.Sg7#
- 1...Sa8
- 2.Qxd5#
- 1...Sc8
- 2.Qxd5#
- 1...d4
- 2.Sxd4#
- 1...axb2+!
- threat
- 1.Bf2?
- threat
- 2.Sd4#
- 1...Qg7+
- 2.Sxg7#
- 1...Bg5
- 2.R4xg5#
- 1...Sa4
- 2.Qxd5#
- 1...Sc4
- 2.Qd3#
- 1...Sd7
- 2.Sg7#
- 1...Sa8
- 2.Qxd5#
- 1...Sc8
- 2.Qxd5#
- 1...d4
- 2.Sxd4#
- 1...Bf6+!
- threat
- 1.Bc3?
- threat
- 2.Sd4#
- 1...Bg5
- 2.R4xg5#
- 1...Bf6
- 2.Rxf6#
- 1...Qg7
- 2.Sxg7#
- 1...Sa4
- 2.Qxd5#
- 1...Sd7
- 2.Sg7#
- 1...Sa8
- 2.Qxd5#
- 1...Sc8
- 2.Qxd5#
- 1...d4
- 2.Sxd4#
- 1...Sc4!
- threat
- 1.Be3?
- threat
- 2.Sd4#
- 1...Qg7+
- 2.Sxg7#
- 1...Bg5
- 2.R4xg5#
- 1...Sa4
- 2.Qxd5#
- 1...Sc4
- 2.Qd3#
- 1...Sd7
- 2.Sg7#
- 1...Sa8
- 2.Qxd5#
- 1...Sc8
- 2.Qxd5#
- 1...d4
- 2.Sxd4#
- 1...Bf6+!
- threat
- 1.Bc5?
- threat
- 2.Sd4#
- 1...Qg7+
- 2.Sxg7#
- 1...Bg5
- 2.R4xg5#
- 1...d4
- 2.Sxd4#
- 1...Bf6+!
- threat
- 1.Bxb6?
- threat
- 2.Sd4#
- 2.Qxd5#
- 1...Qg7+
- 2.Sxg7#
- 1...Qxb6
- 2.Sg7#
- 2.Qxd5#
- 1...Bxb6
- 2.R4g5#
- 2.Qxd5#
- 1...Bg5
- 2.R4xg5#
- 1...Qb7
- 2.Sd4#
- 1...Qb8
- 2.Sd4#
- 2.Sg7#
- 1...Qc7
- 2.Sd4#
- 1...Qd7
- 2.Sd4#
- 1...Qa8
- 2.Sd4#
- 2.Sg7#
- 1...Bc4
- 2.Sd4#
- 1...Bb7
- 2.Sd4#
- 2.Sg7#
- 2.Qd3#
- 1...Bc7
- 2.Sd4#
- 2.Sg7#
- 2.R4g5#
- 1...d4
- 2.Sxd4#
- 2.Qd5#
- 1...Bf6+!
- threat
- 1.Bg7?
- threat
- 2.Sd4#
- 1...Qxg7+
- 2.Sxg7#
- 1...Bf6+
- 2.Rxf6#
- 1...Bg5
- 2.R4xg5#
- 1...Sa4
- 2.Qxd5#
- 1...Sc4
- 2.Qd3#
- 1...Sa8
- 2.Qxd5#
- 1...Sc8
- 2.Qxd5#
- 1...d4
- 2.Sxd4#
- 1...Sd7!
- threat
- 1.Qe3?
- threat
- 2.Qe5#
- 1...Bg5
- 2.R4xg5#
- 2.R6xg5#
- 1...Qb8
- 2.Sg7#
- 1...Qg7
- 2.Sxg7#
- 1...Bf6
- 2.Rxf6#
- 1...Bc7
- 2.Sg7#
- 2.R4g5#
- 2.R6g5#
- 2.Rf6#
- 1...Sc4
- 2.Qd3#
- 1...Sd7
- 2.Sg7#
- 1...Qc7!
- threat
- 1.c4?
- threat
- 2.Qc2#
- 2.Qb1#
- 2.Qd3#
- 1...dxc4
- 2.Qc2#
- 2.Qb1#
- 1...Bf6
- 2.Rxf6#
- 1...a2
- 2.Qc2#
- 2.Qd3#
- 1...Bxc4!
- threat
- 1.Bg1?
- Keys
- 1.Bh8!
- threat
- 2.Sd4#
- 1...Qg7+
- 2.Sxg7#
- 1...Bf6+
- 2.Rxf6#
- 1...Bg5
- 2.R4xg5#
- 1...Sa4
- 2.Qxd5#
- 1...Sc4
- 2.Qd3#
- 1...Sd7
- 2.Sg7#
- 1...Sa8
- 2.Qxd5#
- 1...Sc8
- 2.Qxd5#
- 1...d4
- 2.Sxd4#
- threat
- 1.Bh8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 5
- Sets
- Q(f);N_GUARD::S(H)
- Q(f);N_GUARD,P_PINB(E)::S(H),XQ(f)
- B(d);N_GUARD::QAB(C),XB(d)
- B(d);N_GUARD::QAB(C)
- B(g);N_GUARD::R1(G),XB(g)
- B(g);N_GUARD,P_PINB(E)::R1(I),XB(g)
- B(g);S_CUTQ(f)::S(H)
- S(e);N_GUARD::QAR2(C),XP(b)
- S(e);S_CUTB(d)::QAB(C)
- S(e);S_CUTQ(f)::S(H)
- Tries
- Try
- B(E);
- Threat
- S(H)
- Vars
- Q(f);CHECK,N_GUARD::S(H),XQ(f)
- B(g);N_GUARD::R1(G),XB(g)
- S(e);N_GUARD::QAR2(C),XP(b)
- S(e);S_CUTB(d)::QAB(C)
- S(e);S_CUTQ(f)::S(H)
- P(b);::S(H),XP(b)
- Refutation
- B(g);CHECK
- Try
- B(E);
- Threat
- S(H)
- Vars
- B(g);N_GUARD::R1(G),XB(g)
- B(g);N_GUARD,P_PINB(E)::R1(I),XB(g)
- Q(f);N_GUARD,P_PINB(E)::S(H),XQ(f)
- S(e);N_GUARD::QAR2(C),XP(b)
- S(e);S_CUTB(d)::QAB(C)
- S(e);S_CUTQ(f)::S(H)
- P(b);::S(H),XP(b)
- Refutation
- P(a);CHECK,XB(E)
- Try
- B(E);
- Threat
- S(H)
- Vars
- Q(f);CHECK,N_GUARD::S(H),XQ(f)
- B(g);N_GUARD::R1(G),XB(g)
- S(e);N_GUARD::QAR2(C),XP(b)
- S(e);S_CUTB(d)::QAB(C)
- S(e);S_CUTQ(f)::S(H)
- P(b);::S(H),XP(b)
- Refutation
- B(g);CHECK
- Try
- B(E);
- Threat
- S(H)
- Vars
- B(g);N_GUARD::R1(G),XB(g)
- B(g);N_GUARD,P_PINB(E)::R1(I),XB(g)
- Q(f);N_GUARD,P_PINB(E)::S(H),XQ(f)
- S(e);N_GUARD::QAR2(C),XP(b)
- S(e);S_CUTQ(f)::S(H)
- P(b);::S(H),XP(b)
- Refutation
- S(e);
- Try
- B(E);
- Threat
- S(H)
- Vars
- Q(f);CHECK,N_GUARD::S(H),XQ(f)
- B(g);N_GUARD::R1(G),XB(g)
- S(e);N_GUARD::QAR2(C),XP(b)
- S(e);S_CUTB(d)::QAB(C)
- S(e);S_CUTQ(f)::S(H)
- P(b);::S(H),XP(b)
- Refutation
- B(g);CHECK
- Try
- B(E);
- Threat
- S(H)
- Vars
- Q(f);CHECK,N_GUARD::S(H),XQ(f)
- B(g);N_GUARD::R1(G),XB(g)
- P(b);::S(H),XP(b)
- Refutation
- B(g);CHECK
- Try
- B(E);XS(e)
- Threat
- DUALS(2)
- Vars
- Q(f);CHECK,N_GUARD::S(H),XQ(f)
- B(g);N_GUARD::R1(G),XB(g)
- Q(f);::S(H)
- B(d);::S(H)
- Refutation
- B(g);CHECK
- Try
- B(E);
- Threat
- S(H)
- Vars
- Q(f);CHECK,XB(E)::S(H),XQ(f)
- B(g);CHECK,N_GUARD::R1(I),XB(g)
- B(g);N_GUARD::R1(G),XB(g)
- S(e);N_GUARD::QAR2(C),XP(b)
- S(e);S_CUTB(d)::QAB(C)
- P(b);::S(H),XP(b)
- Refutation
- S(e);
- Try
- Q(C);
- Threat
- QAR1(C)
- Vars
- Q(f);N_GUARD::S(H)
- Q(f);N_GUARD,P_PINB(E)::S(H),XQ(f)
- B(g);N_GUARD,P_PINB(E)::R1(I),XB(g)
- S(e);S_CUTB(d)::QAB(C)
- S(e);S_CUTQ(f)::S(H)
- Refutation
- Q(f);
- Try
- P(B);
- Threat
- DUALS(3)
- Vars
- B(g);N_GUARD,P_PINB(E)::R1(I),XB(g)
- Refutation
- B(d);XP(B)
- Try
- Actual
- B(E);
- Threat
- S(H)
- Vars
- Q(f);CHECK,N_GUARD::S(H),XQ(f)
- B(g);CHECK,N_GUARD::R1(I),XB(g)
- B(g);N_GUARD::R1(G),XB(g)
- S(e);N_GUARD::QAR2(C),XP(b)
- S(e);S_CUTB(d)::QAB(C)
- S(e);S_CUTQ(f)::S(H)
- P(b);::S(H),XP(b)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
CSS/Javascript (jQuery, Bootstrap & DataTables).