MESON Chess Problem Database

Problem Display
PID: 98907 (2BbnB2/q1n1rP2/2pkNpR1/1PNb1P1r/1PP1QP2/3RK2p/8/8 w - - 0 1)

Talaber, Laszlo

Problemas, 1970

2BbnB2/q1n1rP2/2pkNpR1/1PNb1P1r/1PP1QP2/3RK2p/8/8

#2

14 + 11

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qxc5+
      • 2.bxc5#
    • 1...Qa1
      • 2.Sb7#
    • 1...Qa2
      • 2.Sb7#
    • 1...Qa3
      • 2.Sb7#
    • 1...Qa4
      • 2.Sb7#
    • 1...Qa5
      • 2.Sb7#
    • 1...Qb7
      • 2.Sxb7#
    • 1...Sxb5
      • 2.fxe8S#
    • 1...Sa6
      • 2.fxe8S#
    • 1...Sxe6
      • 2.fxe8S#
    • 1...Sa8
      • 2.fxe8S#
  • Tries
    • 1.Sxd8?
      • threat
        • 2.Bxe7#
        • 2.Qe5#
        • 2.Qxe7#
      • 1...Rxf5
        • 2.Bxe7#
        • 2.Qxe7#
      • 1...Sxb5
        • 2.Qe5#
        • 2.fxe8S#
      • 1...Sa6
        • 2.Qe5#
        • 2.fxe8S#
      • 1...Se6
        • 2.fxe8S#
      • 1...Sa8
        • 2.Qe5#
        • 2.fxe8S#
      • 1...Qa1
        • 2.Scb7#
        • 2.Sdb7#
        • 2.Bxe7#
        • 2.Qxe7#
      • 1...Qxc5+!
    • 1.Bxe7+?
      • 1...Kxe7
        • 2.f8Q#
      • 1...Bxe7!
    • 1.Qd4?
      • threat
        • 2.Se4#
      • 1...Qxc5
        • 2.Qxc5#
        • 2.bxc5#
      • 1...Sxe6
        • 2.fxe8S#
      • 1...cxb5!
  • Keys
    • 1.Sd4!
      • threat
        • 2.Qe5#
      • 1...Rxf5
        • 2.Sxf5#
      • 1...Bxe4
        • 2.Sxe4#
      • 1...Se6
        • 2.fxe8S#
      • 1...Be6
        • 2.Qxc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 10
  • Sets
    • Q(g);CHECK,OGATE,XS(H)::P(C),XQ(g)
    • Q(g);N_PINS(H)::S(H)
    • Q(g);N_PINS(H),P_PINR(A)::S(H)
    • Q(g);N_PINS(H)::S(H),XQ(g)
    • S(h);N_GUARD,XP(G)::PXS(k)=S
    • S(h);N_GUARD::PXS(k)=S
    • S(h);N_GUARD,XS(J)::PXS(k)=S
  • Tries
    • Try
      • S(J);P_PINP(f),P_SPINQ(E),XB(j)
      • Threat
        • DUALS(3)
      • Vars
        • S(h);N_GUARD,N_PINQ(E),N_SPINP(f)::PXS(k)=S
      • Refutation
        • Q(g);CHECK,XS(H)
    • Try
      • B(N);CHECK,XR(i)
      • Vars
        • K(e);N_SPINB(b),S_FLIGHT,XB(N)::P=Q
      • Refutation
        • B(j);XB(N)
    • Try
      • Q(E);N_SPINS(H),P_SPINS(J)
      • Threat
        • S(H)
      • Vars
        • S(h);N_GUARD,XS(J)::PXS(k)=S
      • Refutation
        • P(d);XP(G)
  • Actual
    • S(J);N_PINB(b),N_SPINS(H),P_PINP(f),P_SPINQ(E)
    • Threat
      • QAB1(E)
    • Vars
      • R(c);XP(I)::S(J),XR(c)
      • B(b);XQ(E)::S(H),XB(b)
      • S(h);N_GUARD,N_PINQ(E),N_SPINP(f)::PXS(k)=S
      • B(b);N_PINQ(E),N_SPINP(f)::QAR1(E),XP(d)
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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).