MESON Chess Problem Database
Problem Display
PID: 41585 (2BbK3/4NppR/5krR/r3q2p/2N5/5p2/8/Bb4Q1 w - - 0 1)
Maleika, Gerhard
Die Schwalbe, 2002
#2
8 + 10
SOLUTION
- SOUND
- Sets
- 1...Qxa1
- 2.Sg8#
- 1...Qb2
- 2.Sg8#
- 1...Qc3
- 2.Sg8#
- 1...Qd4
- 2.Sg8#
- 1...Ra2
- 2.Bxe5#
- 1...Ra3
- 2.Bxe5#
- 1...Ra4
- 2.Bxe5#
- 1...Ra6
- 2.Bxe5#
- 1...Ra7
- 2.Bxe5#
- 1...Ra8
- 2.Bxe5#
- 1...Rxh6
- 2.Qxg7#
- 1...gxh6
- 2.Rxf7#
- 1...Qxa1
- Tries
- 1.Kf8?
- threat
- 2.Sg8#
- 1...gxh6
- 2.Rxf7#
- 1...Bxe7+!
- threat
- 1.Kf8?
- Keys
- 1.Qg3!
- threat
- 2.Qh4#
- 1...Qxa1
- 2.Sg8#
- 1...Rxa1
- 2.Qxe5#
- 1...Rxh6
- 2.Qxg7#
- 1...gxh6
- 2.Rxf7#
- 1...Qb2
- 2.Sg8#
- 1...Qc3
- 2.Sg8#
- 1...Qd4
- 2.Sg8#
- 1...h4
- 2.Qxh4#
- threat
- 1.Qg3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 6
- Sets
- Q(d);N_PINS(E),N_SPINQ(d),XB(A)::S(E)
- Q(d);N_PINS(E)::S(E)
- R(c);N_GUARD::B(A),XQ(d)
- R(g);N_SPINR(g),OGATE,XR(D)::QAB1(B),XP(i)
- P(i);N_SPINR(g),OGATE,XR(D)::R1(F),XP(h)
- Tries
- Try
- K(H);N_SPINS(E),P-FLIGHT
- Threat
- S(E)
- Vars
- P(i);N_SPINR(g),OGATE,XR(D)::R1(F),XP(h)
- Refutation
- B(j);CHECK,XS(E)
- Try
- Actual
- Q(B);
- Threat
- QAB(B)
- Vars
- Q(d);N_PINS(E),N_SPINQ(d),XB(A)::S(E)
- R(c);N_GUARD,N_SPINQ(d),XB(A)::QAB1(B),XQ(d)
- R(g);N_SPINR(g),OGATE,XR(D)::QAB1(B),XP(i)
- P(i);N_SPINR(g),OGATE,XR(D)::R1(F),XP(h)
- Q(d);N_PINS(E)::S(E)
- P(e);::QAB(B),XP(e)
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).