MESON Chess Problem Database

Problem Display
PID: 274014 (8/B6b/K7/Q6B/1N1p4/3PN3/pRPP1P1R/4kr2 w - - 0 1)

Paslack, Rainer

Die Schwalbe, 2023

8/B6b/K7/Q6B/1N1p4/3PN3/pRPP1P1R/4kr2

#2

12 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Kxd2
      • 2.Sxa2#
    • 1...Bxd3+
      • 2.Sxd3#
  • Tries
    • 1.Sg2+?
      • 1...Kxd2
        • 2.Sxa2#
      • 1...Kxf2!
  • Keys
    • 1.c4!
      • threat
        • 2.Sbc2#
      • 1...Bxd3
        • 2.Sxd3#
      • 1...dxc4 ep
        • 2.Sg2#
      • 1...a1S
        • 2.Qxa1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • K(a);S_FLIGHT,XP(C)::QAB(I)+S(H),XP(c)
    • B(e);CHECK,XP(F)::S(H),XB(e)
  • Tries
    • Try
      • S(G);CHECK
      • Vars
        • K(a);N_GUARD,S_FLIGHT,XP(C)::QAB(I)+S(H),XP(c)
      • Refutation
        • K(a);P_SPINP(d),S_FLIGHT,XP(D)
  • Actual
    • P(B);
    • Threat
      • S(H)
    • Vars
      • B(e);P_PINP(B),XP(F)::S(H),XB(e)
      • P(d);EP,XP(B)::S(G)
      • P(c);OGATE::QAR(I),XS(c)
HTML5 logo

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).