MESON Chess Problem Database

Problem Display
PID: 180364 (nB2bn2/2r5/2P2RP1/4kp2/2P1NpB1/2K2P1Q/8/8 w - - 0 1)

Lider, Valentin Viktorovich

Europe Echecs, 1978

nB2bn2/2r5/2P2RP1/4kp2/2P1NpB1/2K2P1Q/8/8

#2

10 + 7

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Sb6
      • 2.Bxc7#
    • 1...Se6
      • 2.Rxf5#
    • 1...fxg4
      • 2.Qh5#
  • Keys
    • 1.Qh8!
      • 1...Bxc6
        • 2.Rxc6#
      • 1...Bxg6
        • 2.Rxg6#
      • 1...Sxg6
        • 2.Rxg6#
      • 1...fxe4
        • 2.Re6#
      • 1...fxg4
        • 2.Qh5#
      • 1...Bd7
        • 2.Rd6#
      • 1...Bf7
        • 2.Rd6#
      • 1...Sb6
        • 2.Bxc7#
      • 1...Se6
        • 2.Rxf5#
      • 1...Sd7
        • 2.Qxe8#
      • 1...Sh7
        • 2.Qxe8#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
    • S(e);N_GUARD::B(J),XR(d)
    • S(g);SBLOCK::R1(H),XP(c)
    • P(c);OGATEB,XB(F)::QAR(C)
  • Actual
    • Q(C);
    • Vars
      • B(f);OGATE,XP(G)::QAB(C)+R(H),XB(f)
      • B(f);OGATE,XP(I)::QAB(C)+R(H),XB(f)
      • S(g);OGATE,XP(I)::QAB(C)+R(H),XS(g)
      • P(c);XS(E)::QAB(C)+R(H),DCHECK
      • P(c);OGATEB,XB(F)::QAR(C)
      • B(f);::QAB(C)+R(H)
      • S(e);N_GUARD::B(J),XR(d)
      • S(g);SBLOCK::QAB(C)+R(H),DCHECK,XP(c)
      • S(g);OGATE::QAR(C),XB(f)
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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).