MESON Chess Problem Database
Problem Display
PID: 89926 (1B1K4/1PR5/1pPkP1PR/1p1b4/2p1p1P1/b2nQN2/6n1/8 w - - 0 1)
Maleika, Gerhard
Die Schwalbe, 1986
#2
11 + 9
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Kxe6
- 2.g7#
- 1...exf3
- 2.Rc8#
- 1...Kxe6
- Tries
- 1.Rd7+?
- 1...Kxe6
- 2.g7#
- 1...Kxc6!
- 1...Kxe6
- 1.Rf7+?
- 1...Kxe6
- 2.Sd4#
- 2.Sg5#
- 1...Kxc6!
- 1...Kxe6
- 1.Qg5?
- threat
- 2.Qe7#
- 1...Kc5
- 2.Qe7#
- 1...Kxe6
- 2.g7#
- 1...Bxc6
- 2.Re7#
- 1...Bxe6
- 2.Rc8#
- 1...exf3!
- threat
- 1.g7?
- threat
- 2.Rc8#
- 1...Bxc6
- 2.Rd7#
- 1...Bxe6
- 2.Qd4#
- 1...Sxe3!
- threat
- 1.Rd7+?
- Keys
- 1.Qxb6!
- threat
- 2.Re7#
- 1...Kxe6
- 2.g7#
- 1...Bxc6
- 2.Qxc6#
- 1...Bxe6
- 2.Rd7#
- threat
- 1.Qxb6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 1
- Sets
- K(i);P-FLIGHT,P_SPINP(e),XP(E)::R(G)+P(F)
- P(e);XS(B)::B(J)+R(I)
- Tries
- Try
- R(I);CHECK
- Vars
- K(i);P-FLIGHT,P_SPINP(e),XP(E)::R(G)+P(F)
- Refutation
- K(i);P-FLIGHT,XP(D)
- Try
- R(I);CHECK
- Refutation
- K(i);P-FLIGHT,XP(D)
- Try
- Q(A);
- Threat
- QAB1(A)
- Vars
- K(i);P_SPINB(g),S_FLIGHT::QAB(A)
- K(i);P-FLIGHT,XP(E)::R(G)+P(F)
- B(g);SBLOCK,XP(D)::B(J)+R(I)
- B(g);SBLOCK,XP(E)::B(J)+R(I)
- Refutation
- P(e);XS(B)
- Try
- P(F);
- Threat
- B(J)+R(I)
- Vars
- B(g);SBLOCK,XP(D)::B(J)+R(I),DCHECK
- B(g);OGATEB,P_SPINB(g),XP(E)::QAR2(A)
- Refutation
- S(a);XQ(A)
- Try
- Actual
- Q(A);XP(h)
- Threat
- B(J)+R(I)
- Vars
- K(i);P-FLIGHT,XP(E)::R(G)+P(F)
- B(g);OGATE,P_SPINB(g),XP(D)::QAR1(A),XB(g)
- B(g);SBLOCK,XP(E)::B(J)+R(I),DCHECK
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).