Problem Display
PID: 230259 (2B5/2pN2b1/1Rb1PP1p/K2k1n1Q/2NPpr2/1P2p3/8/3R4 w - - 0 1)

Labai, Zoltan

Variantim, 2005

2B5/2pN2b1/1Rb1PP1p/K2k1n1Q/2NPpr2/1P2p3/8/3R4

#2

11 + 9


SOLUTION


  • SOUND
  • Sets
    • 1...Kxe6
      • 2.d5#
    • 1...Rg4
      • 2.Qxf5#
    • 1...Rh4
      • 2.Qxf5#
    • 1...Ba4
      • 2.Sxe3#
    • 1...Bb5
      • 2.Sxe3#
    • 1...Bb7
      • 2.Sxe3#
    • 1...Bxd7
      • 2.Sxe3#
    • 1...Ba8
      • 2.Sxe3#
    • 1...Bxf6
      • 2.Sxf6#
    • 1...cxb6+
      • 2.Sdxb6#
  • Tries
    • 1.Rb5+?
      • 1...Kxe6
        • 2.Re5#
      • 1...Bxb5!
    • 1.Qf7?
      • threat
        • 2.e7#
      • 1...cxb6+
        • 2.Sdxb6#
      • 1...Bxd7
        • 2.exd7#
      • 1...Sd6
        • 2.Sxe3#
      • 1...Se7!
    • 1.fxg7?
      • threat
        • 2.Sf6#
      • 1...cxb6+
        • 2.Sdxb6#
      • 1...Bxd7
        • 2.Sxe3#
      • 1...Kxe6!
  • Keys
    • 1.e7!
      • threat
        • 2.Qf7#
      • 1...cxb6+
        • 2.Sdxb6#
      • 1...Ke6
        • 2.d5#
      • 1...Bxd7
        • 2.Sxe3#

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 7
  • Sets
    • K(d);N_SPINS(e),OGATE,P_SPINB(f),S_FLIGHT,XP(H)::P(D)
    • R(c);N_GUARD::QAR2(F),XS(e)
    • B(f);::S(C),XP(a)
    • B(f);XS(J)::S(C),XP(a)
    • B(i);XP(I)::S(J),XB(i)
    • P(h);CHECK,XR(G)::S(J),XP(h)
  • Tries
    • Try
      • R(G);CHECK
      • Vars
        • K(d);N_SPINS(e),OGATE,S_FLIGHT,XP(H)::R1(G)
      • Refutation
        • B(f);XR(G)
    • Try
      • Q(F);N_PINS(e)
      • Threat
        • QAB(F)+P(H)
      • Vars
        • P(h);CHECK,XR(G)::S(J),XP(h)
        • B(f);OGATE,XS(J)::QAB(F)+P(H),XB(f)
        • S(e);N_GUARD,SBLOCK::S(C),XP(a)
      • Refutation
        • S(e);
    • Try
      • P(I);XB(i)
      • Threat
        • S(J)
      • Vars
        • P(h);CHECK,XR(G)::S(J),XP(h)
        • B(f);XS(J)::S(C),XP(a)
      • Refutation
        • K(d);N_SPINS(e),P_SPINB(f),S_FLIGHT,XP(H)
  • Actual
    • P(H);
    • Threat
      • QAB(F)
    • Vars
      • P(h);CHECK,XR(G)::S(J),XP(h)
      • K(d);N_SPINS(e),OGATE,P_SPINB(f),S_FLIGHT::P(D)
      • B(f);XS(J)::S(C),XP(a)


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).