MESON Chess Problem Database
Problem Display
PID: 89929 (4Q3/1PN2pp1/5br1/1B3b1r/Np1k1P2/1P1P1Rp1/6P1/3n1K1n w - - 0 1)
Maleika, Gerhard
Die Schwalbe, 1994
#2
11 + 11
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Bxd3+
- 2.Rxd3#
- 1...Bh3
- 2.Qe4#
- 1...Be4
- 2.Qxe4#
- 1...Bg4
- 2.Qe4#
- 1...Bd7
- 2.Qe4#
- 1...Bc8
- 2.Qe4#
- 1...Bh4
- 2.Qe5#
- 1...Be5
- 2.Qxe5#
- 1...Bg5
- 2.Qe5#
- 1...Bd8
- 2.Qe5#
- 1...Sb2
- 2.Qe3#
- 1...Sdf2
- 2.Qe3#
- 1...Sc3
- 2.Qe3#
- 1...Se3+
- 2.Qxe3#
- 1...Bxd3+
- Tries
- 1.Se6+?
- 1...Kd5
- 2.Qc6#
- 2.Qd7#
- 1...fxe6
- 2.Qd7#
- 1...Bxe6!
- 1...Kd5
- 1.Bc4?
- threat
- 2.Sb5#
- 1...Bxd3+
- 2.Rxd3#
- 1...Se3+
- 2.Qxe3#
- 1...Bh3
- 2.Qe4#
- 1...Be4
- 2.Qxe4#
- 1...Bg4
- 2.Qe4#
- 1...Bd7
- 2.Qe4#
- 1...Bc8
- 2.Qe4#
- 1...Sc3
- 2.Qe3#
- 1...Be6!
- threat
- 1.Qc6?
- threat
- 2.Qd5#
- 2.Qc4#
- 2.Qc5#
- 2.Qb6#
- 2.Qd6#
- 1...Bxd3+
- 2.Rxd3#
- 1...Bh3
- 2.Qe4#
- 2.Qc4#
- 1...Be4
- 2.Qxe4#
- 2.Qc4#
- 1...Bg4
- 2.Qe4#
- 2.Qc4#
- 1...Be6
- 2.Qe4#
- 1...Bd7
- 2.Qe4#
- 2.Qc4#
- 1...Bc8
- 2.Qe4#
- 2.Qc4#
- 1...Bh4
- 2.Qd5#
- 2.Qc4#
- 2.Qc5#
- 1...Be5
- 2.Qd5#
- 2.Qc4#
- 2.Qc5#
- 1...Bg5
- 2.Qd5#
- 2.Qc4#
- 2.Qc5#
- 1...Be7
- 2.Qd5#
- 2.Qc4#
- 1...Bd8
- 2.Qd5#
- 2.Qc4#
- 2.Qc5#
- 1...Sb2
- 2.Qd5#
- 2.Qc5#
- 2.Qb6#
- 2.Qd6#
- 1...Sc3
- 2.Qc4#
- 2.Qc5#
- 2.Qb6#
- 1...Se3+!
- threat
- 1.b8S?
- threat
- 2.Sc6#
- 1...Bxd3+
- 2.Rxd3#
- 1...Se3+
- 2.Qxe3#
- 1...Be4
- 2.Qxe4#
- 1...Bd7
- 2.Qe4#
- 1...Bh4
- 2.Qe5#
- 1...Be5
- 2.Qxe5#
- 1...Bg5
- 2.Qe5#
- 1...Bd8
- 2.Qe5#
- 1...Be7!
- threat
- 1.Se6+?
- Keys
- 1.Qe1!
- threat
- 2.Qxb4#
- 1...Bxd3+
- 2.Rxd3#
- 1...Se3+
- 2.Qxe3#
- 1...Be6
- 2.Qe4#
- 1...Be7
- 2.Qe5#
- 1...Sb2
- 2.Qe3#
- 1...Sc3
- 2.Qe3#
- threat
- 1.Qe1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 10
- Sets
- B(f);CHECK,OGATE,XP(D)::R1(E),XB(f)
- B(f);N_GUARD,P_PINP(B)::QAR1(K)
- B(f);N_GUARD::QAR1(K),XB(f)
- B(f);N_GUARD::QAR1(K)
- B(h);N_GUARD::QAB1(K)
- B(h);N_GUARD::QAB1(K),XB(h)
- S(a);N_GUARD::QAB1(K)
- S(a);CHECK,N_GUARD::QAB1(K),XS(a)
- Tries
- Try
- S(J);CHECK
- Vars
- P(j);XS(J)::QAR(K)
- Refutation
- B(f);XS(J)
- Try
- B(H);
- Threat
- S(J)
- Vars
- B(f);CHECK,OGATE,XP(D)::R1(E),XB(f)
- S(a);CHECK,N_GUARD::QAB1(K),XS(a)
- B(f);N_GUARD,P_PINP(B)::QAR1(K)
- B(f);N_GUARD::QAR1(K),XB(f)
- B(f);N_GUARD::QAR1(K)
- S(a);N_GUARD::QAB1(K)
- Refutation
- B(f);
- Try
- Q(K);
- Threat
- DUALS(5)
- Vars
- B(f);CHECK,OGATE,XP(D)::R1(E),XB(f)
- B(f);N_GUARD::QAR1(K)
- Refutation
- S(a);CHECK
- Try
- P(I);
- Threat
- S(I)
- Vars
- B(f);CHECK,OGATE,XP(D)::R1(E),XB(f)
- S(a);CHECK,N_GUARD::QAB1(K),XS(a)
- B(f);N_GUARD::QAR1(K),XB(f)
- B(f);N_GUARD::QAR1(K)
- B(h);N_GUARD::QAB1(K)
- B(h);N_GUARD::QAB1(K),XB(h)
- Refutation
- B(h);
- Try
- Actual
- Q(K);
- Threat
- QAR2(K),XP(d)
- Vars
- B(f);CHECK,OGATE,XP(D)::R1(E),XB(f)
- S(a);CHECK,N_GUARD::QAB1(K),XS(a)
- B(f);N_GUARD::QAR1(K)
- B(h);N_GUARD::QAB1(K)
- S(a);N_GUARD::QAB1(K)
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).