MESON Chess Problem Database

Problem Display
PID: 71782 (4B3/5p1Q/3Pp1rb/3kr1N1/1PN3bR/1KP2P2/6nB/8 w - - 0 1)

Zaldo Zapirain, Juan

1st Prize, Magasinet, 1953/I

4B3/5p1Q/3Pp1rb/3kr1N1/1PN3bR/1KP2P2/6nB/8

#2

11 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Re1
      • 2.Sb6#
    • 1...Re2
      • 2.Sb6#
    • 1...Re3
      • 2.Sb6#
    • 1...Re4
      • 2.Sb6#
      • 2.fxe4#
    • 1...Rf5
      • 2.Sb6#
    • 1...Rexg5
      • 2.Sb6#
    • 1...Rgxg5
      • 2.Qd3#
    • 1...Rf6
      • 2.Qd3#
    • 1...Rg7
      • 2.Qd3#
    • 1...Rg8
      • 2.Qd3#
    • 1...Bxf3
      • 2.Rd4#
    • 1...Bh3
      • 2.Rd4#
    • 1...Bf5
      • 2.Rd4#
    • 1...Bh5
      • 2.Rd4#
    • 1...f5
      • 2.Qb7#
    • 1...f6
      • 2.Qb7#
  • Tries
    • 1.Rxg4?
      • threat
        • 2.Rd4#
      • 1...Re4
        • 2.Sb6#
        • 2.fxe4#
      • 1...Sf4!
  • Keys
    • 1.Sxe6!
      • threat
        • 2.Sc7#
      • 1...Kxe6
        • 2.Qxf7#
      • 1...Rexe6
        • 2.Sb6#
      • 1...Rgxe6
        • 2.Qd3#
      • 1...Bxe6
        • 2.Rd4#
      • 1...fxe6
        • 2.Qb7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 15
  • Sets
    • R(d);::S(F)
    • R(d);P_PINP(C)::S(F)
    • R(d);XS(H)::S(F)
    • R(f);OGATE,XS(H)::QAR2(J)
    • R(f);OGATE::QAR2(J)
    • B(b);OGATE,XP(D)::R1(G)
    • B(b);OGATE::R1(G)
    • P(h);OGATE::QAB(J)
  • Tries
    • Try
      • R(G);XB(b)
      • Threat
        • R1(G)
      • Refutation
        • S(a);
  • Actual
    • S(H);XP(e)
    • Threat
      • S(H)
    • Vars
      • K(c);OGATEB,S_FLIGHT,XS(H)::QAB1(J),XP(h)
      • R(d);SBLOCK,XS(H)::S(F)
      • R(f);OGATE,SBLOCK,XS(H)::QAR2(J)
      • B(b);OGATE,SBLOCK,XS(H)::R1(G)
      • P(h);OGATE,SBLOCK,XS(H)::QAB(J)
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Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).