MESON Chess Problem Database

Problem Display
PID: 140875 (8/7B/Q3pPrP/1Nppk1p1/4P3/1P1b1PK1/7B/3R4 w - - 0 1)

Tafferner, Jozsef

1st Prize, Magyar Sakkvilag, 1947

8/7B/Q3pPrP/1Nppk1p1/4P3/1P1b1PK1/7B/3R4

#2

11 + 7

6490 yacpdb 2011

SOLUTION

  • SOUND
  • Sets
    • 1...Rxf6
      • 2.Qd6#
  • Tries
    • 1.Bg8?
      • threat
        • 2.Qxe6#
      • 1...Kxf6
        • 2.Qxe6#
      • 1...Rxf6
        • 2.Qd6#
      • 1...Rxg8!
  • Keys
    • 1.exd5!
      • threat
        • 2.Qxe6#
      • 1...Kxd5
        • 2.Qd6#
      • 1...Kf5
        • 2.Qxe6#
      • 1...Kxf6
        • 2.Qxe6#
      • 1...Rxf6
        • 2.Qd6#
      • 1...exd5
        • 2.Kg4#
      • 1...Bf5
        • 2.Qa1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • R(g);SBLOCK,XP(I)::QAB1(H)
  • Tries
    • Try
      • B(K);
      • Threat
        • QAR1(H),XP(f)
      • Vars
        • K(d);P_SPINP(f),S_FLIGHT,XP(I)::QAR1(H),XP(f)
        • R(g);SBLOCK,XP(I)::QAB1(H)
      • Refutation
        • R(g);XB(K)
  • Actual
    • P(F);XP(c)
    • Threat
      • QAR1(H),XP(f)
    • Vars
      • K(d);P-FLIGHT,P_SPINB(a),XP(F)::QAR1(H)
      • K(d);P-FLIGHT,P_SPINR(g)::QAB1(H),XP(f)
      • K(d);P_SPINP(f),S_FLIGHT,XP(I)::QAR1(H),XP(f)
      • R(g);SBLOCK,XP(I)::QAB1(H)
      • P(f);SBLOCK,XP(F)::B(B)+K(E)
      • B(a);SBLOCK::QAB(H)
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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).