MESON Chess Problem Database

Problem Display
PID: 71784 (KB3Q2/1pr5/1N6/4Pn2/R3bkpP/5N2/4PPB1/2br4 w - - 0 1)

Zaldo Zapirain, Juan

Il Due Mosse, 1953

KB3Q2/1pr5/1N6/4Pn2/R3bkpP/5N2/4PPB1/2br4

#2

11 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Re1
      • 2.Sd5#
    • 1...Rf1
      • 2.Sd5#
    • 1...Rg1
      • 2.Sd5#
    • 1...Rh1
      • 2.Sd5#
    • 1...Rd2
      • 2.e3#
    • 1...Rd5
      • 2.Sxd5#
    • 1...Bb2
      • 2.e3#
    • 1...Bd2
      • 2.Sd5#
    • 1...Ba3
      • 2.e3#
  • Tries
    • 1.Sg5?
      • threat
        • 2.Rxe4#
      • 1...Kxe5
        • 2.Rxe4#
      • 1...Rc4
        • 2.Se6#
      • 1...Rd4!
  • Keys
    • 1.Sd2!
      • threat
        • 2.Rxe4#
      • 1...Kxe5
        • 2.Rxe4#
      • 1...Rc4
        • 2.e3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 9
  • Sets
    • R(b);N_GUARD::S(H)
    • R(b);S_CUTB(a)::P(A)
    • R(b);N_GUARD::S(H),XR(b)
    • B(a);N_GUARD::P(A)
    • B(a);S_CUTR(b)::S(H)
  • Tries
    • Try
      • S(D);
      • Threat
        • R1(E),XB(c)
      • Vars
        • K(d);N_SPINB(c),N_SPINS(f),P_SPINR(h),S_FLIGHT,XP(G)::R1(E),XB(c)
        • R(h);N_SPINB(c)::S(D)
      • Refutation
        • R(b);N_SPINB(c)
  • Actual
    • S(D);
    • Threat
      • R1(E),XB(c)
    • Vars
      • K(d);N_SPINB(c),N_SPINS(f),P_SPINR(h),S_FLIGHT,XP(G)::R1(E),XB(c)
      • R(h);N_SPINB(c)::P(A)
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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).