MESON Chess Problem Database

Problem Display
PID: 269885 (3R4/3Bp1N1/3N4/np1kp3/1PpP4/2BP4/6b1/1K1Q4 w - - 0 1)

Labai, Zoltan

Tehtavaniekka, 2021

3R4/3Bp1N1/3N4/np1kp3/1PpP4/2BP4/6b1/1K1Q4

#2

10 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Sc6
      • 2.Be6#
  • Tries
    • 1.dxc4+?
      • 1...Kxd6
        • 2.Se8#
      • 1...bxc4
        • 2.dxe5#
      • 1...Sxc4!
    • 1.dxe5?
      • threat
        • 2.dxc4#
      • 1...cxd3
        • 2.Qxd3#
      • 1...Be4
        • 2.dxe4#
      • 1...exd6!
  • Keys
    • 1.Qh5!
      • threat
        • 2.Qxe5#
      • 1...Kxd6
        • 2.Qxe5#
      • 1...exd6
        • 2.Qf7#
      • 1...Sc6
        • 2.Be6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • S(c);SBLOCK::B(H)
  • Tries
    • Try
      • P(D);CHECK,XP(b)
      • Vars
        • K(e);P-FLIGHT,S_CUTP(d),S_CUTS(c),XS(G)::S(I)
        • P(d);XP(D)::QAR(B)+P(F),XP(f)
      • Refutation
        • S(c);XP(D)
    • Try
      • P(F);XP(f)
      • Threat
        • QAR(B)+P(D)DCHECK,XP(b)
      • Vars
        • P(b);OGATE,P_SPINP(b),XP(D)::QAR2(B),XP(b)
        • B(a);OGATE,P_PINP(D)::QAR(B)+P(D)DCHECK,XB(a)
      • Refutation
        • P(g);XS(G)
  • Actual
    • Q(B);P_PINP(f)
    • Threat
      • QAR1(B),XP(f)
    • Vars
      • K(e);N_SPINP(f),P-FLIGHT,XS(G)::QAB1(B),XP(f)
      • P(g);N_GUARD,SBLOCK,XS(G)::QAB(B)
      • S(c);SBLOCK::B(H)
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).