MESON Chess Problem Database

Problem Display
PID: 263904 (K3Qn1r/8/B2p3p/2PPp2N/N3k2b/2pRP2r/2P1P1n1/q4R2 w - - 0 1)

Parcerisa, Jose Antonio Lopez

Coello-75 JT (Problemas), 2017

K3Qn1r/8/B2p3p/2PPp2N/N3k2b/2pRP2r/2P1P1n1/q4R2

#2

12 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Qb1
      • 2.Sxc3#
    • 1...Qc1
      • 2.Sxc3#
    • 1...Qd1
      • 2.Sxc3#
    • 1...Qa2
      • 2.Sxc3#
    • 1...Qxa4
      • 2.Qxa4#
    • 1...Be1
      • 2.Sf6#
    • 1...Bg3
      • 2.Sf6#
    • 1...Bf6
      • 2.Sxf6#
    • 1...Se1
      • 2.Rf4#
    • 1...Sxe3
      • 2.Rf4#
    • 1...Sf4
      • 2.Rxf4#
    • 1...dxc5
      • 2.Sxc5#
  • Keys
    • 1.Bc8!
      • threat
        • 2.Bf5#
      • 1...Qxa4+
        • 2.Qxa4#
      • 1...Qxf1
        • 2.Sxc3#
      • 1...Sxe3
        • 2.Rf4#
      • 1...Rf3
        • 2.exf3#
      • 1...Bf2
        • 2.Sf6#
      • 1...Sf4
        • 2.Rxf4#
      • 1...Se6
        • 2.Qg6#
      • 1...Sd7
        • 2.Qg6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 9
  • Sets
    • Q(a);N_GUARD::S(F),XP(c)
    • Q(a);OGATE,P_PINB(J),XS(F)::QAR(L),XQ(a)
    • B(f);N_GUARD::S(I)
    • B(f);N_GUARD::S(I),XB(f)
    • S(b);N_GUARD::R1(A)
    • S(b);N_GUARD,XP(E)::R1(A)
    • S(b);N_GUARD::R1(A),XS(b)
    • P(h);XP(G)::S(F),XP(h)
  • Actual
    • B(J);P_SPINS(F)
    • Threat
      • B(J)
    • Vars
      • Q(a);CHECK,OGATE,XS(F)::QAR(L),XQ(a)
      • Q(a);N_PINS(F),XR(A)::S(F),XP(c)
      • S(b);N_GUARD,XP(E)::R1(A)
      • R(d);OGATE::P(C),XR(d)
      • B(f);N_GUARD::S(I)
      • S(b);N_GUARD::R1(A),XS(b)
      • S(j);N_GUARD,N_SPINP(g)::QAB(L)
      • S(j);N_GUARD::QAB(L)
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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).