MESON Chess Problem Database

Problem Display
PID: 247202 (n2Qbq2/P1Nn1P2/PpkP1b1R/5K2/2P5/2pN4/8/3R4 w - - 0 1)

Murashev, Pavel Aleksandrovich

Uralski Problemist, 2010

n2Qbq2/P1Nn1P2/PpkP1b1R/5K2/2P5/2pN4/8/3R4

#2

11 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Kxd6
      • 2.Rxf6#
    • 1...Bd4
      • 2.Qxa8#
    • 1...Bh4
      • 2.Qxa8#
    • 1...Be5
      • 2.Qxa8#
    • 1...Bg5
      • 2.Qxa8#
    • 1...Be7
      • 2.Qxa8#
    • 1...Bg7
      • 2.Qxa8#
    • 1...Bh8
      • 2.Qxa8#
    • 1...Sc5
      • 2.Sb4#
    • 1...Sb8
      • 2.axb8S#
    • 1...Sxc7
      • 2.Qxc7#
  • Tries
    • 1.Sb5?
      • threat
        • 2.Qxa8#
      • 1...Bxd8
        • 2.Sd4#
      • 1...Sc5
        • 2.Sb4#
      • 1...Se5
        • 2.Sd4#
      • 1...Sb8
        • 2.axb8S#
      • 1...Sc7
        • 2.Qxc7#
      • 1...Bxf7!
  • Keys
    • 1.Se6!
      • threat
        • 2.Sb4#
      • 1...Kxd6
        • 2.Se5#
      • 1...Qxd6
        • 2.Qxa8#
      • 1...Bd4
        • 2.Sxd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 1
    • REMOVED MATES = 9
  • Sets
    • K(c);OGATEB,P-FLIGHT,P_SPINB(d),P_SPINS(e),XP(F)::R(G),XB(d)
    • B(d);P_PINP(J)::QAB(K),XS(f)
    • S(e);SBLOCK::S(B)
    • S(e);OGATE::PXS(e)=S
    • S(f);OGATE,XS(I)::QAR1(K),XS(f)
  • Tries
    • Try
      • S(I);
      • Threat
        • QAB(K),XS(f)
      • Vars
        • B(d);N_GUARD,P_PINP(J),XQ(K)::S(I)
        • S(e);SBLOCK::S(B)
        • S(e);S_CUTB(d)::S(I)
        • S(e);OGATE::PXS(e)=S
        • S(f);N_GUARD::QAR1(K),XS(f)
      • Refutation
        • B(g);XP(J)
  • Actual
    • S(I);
    • Threat
      • S(B)
    • Vars
      • K(c);P-FLIGHT,P_SPINS(e),XP(F)::R(A)+S(B)
      • Q(h);SBLOCK,XP(F)::QAB(K),XS(f)
      • B(d);N_GUARD,P_PINP(J)::S(I),XB(d)
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).