MESON Chess Problem Database

Problem Display
PID: 146828 (1n1R4/1p1b1P2/4p1Q1/PRpkB2p/K3N2r/3pP3/6B1/b2r4 w - - 0 1)

Foschini, Ettore

Il Problema, 1931

1n1R4/1p1b1P2/4p1Q1/PRpkB2p/K3N2r/3pP3/6B1/b2r4

#2

10 + 11

14868 Pirnie Collection 2013

SOLUTION

  • SOUND
  • Sets
    • 1...Kc4
      • 2.Sd6#
    • 1...Kxe5
      • 2.Qg5#
    • 1...Kc6
      • 2.Rxc5#
    • 1...Rxe4+
      • 2.Qxe4#
    • 1...Sc6
      • 2.Rxc5#
  • Tries
    • 1.Rxd7+?
      • 1...Kc4
        • 2.Sd6#
        • 2.Rxc5#
        • 2.Qxe6#
      • 1...Kxe5
        • 2.Rxc5#
        • 2.Qg5#
        • 2.Qf6#
      • 1...Kc6
        • 2.Qxe6#
      • 1...Sxd7!
  • Keys
    • 1.f8S!
      • threat
        • 2.Qxe6#
      • 1...Rxe4+
        • 2.Qxe4#
      • 1...Kc4
        • 2.Sd6#
      • 1...Kxe5
        • 2.Qg5#
      • 1...Kc6
        • 2.Rxc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 1
  • Sets
    • K(f);N_PINS(D),N_SPINB(j),N_SPINP(e),S_FLIGHT::S(D)
    • K(f);N_SPINB(j),OGATEB,P-FLIGHT,XB(G)::QAR2(H)
    • K(f);N_PINR(F),N_SPINB(j),N_SPINP(e),P_SPINP(h),S_FLIGHT::R1(F),XP(e)
    • R(d);CHECK,OGATE,P_SPINR(d),XS(D)::QAB1(H),XR(d)
    • S(k);N_PINR(F)::R1(F),XP(e)
  • Tries
    • Try
      • R(J);CHECK,N_SPINR(F),XB(j)
      • Vars
        • K(f);N_SPINP(e),P_SPINP(h),S_FLIGHT::QAR2(H),XP(h)
      • Refutation
        • S(k);XR(J)
  • Actual
    • P(I);
    • Threat
      • QAB1(H),XP(h)
    • Vars
      • R(d);CHECK,OGATE,P_SPINR(d),XS(D)::QAB1(H),XR(d)
      • K(f);N_PINS(D),N_SPINB(j),N_SPINP(e),S_FLIGHT::S(D)
      • K(f);N_SPINB(j),OGATEB,P-FLIGHT,XB(G)::QAR2(H)
      • K(f);N_PINR(F),N_SPINB(j),N_SPINP(e),P_SPINP(h),S_FLIGHT::R1(F),XP(e)
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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).