MESON Chess Problem Database

Problem Display
PID: 96638 (6BK/4Q3/1R6/5p2/b1Pk1p2/5p2/N4N2/b7 w - - 0 1)

Pniak, Edmund Jan

Problem (Zagreb), 1952

6BK/4Q3/1R6/5p2/b1Pk1p2/5p2/N4N2/b7

#2

7 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Qf6+?
      • 1...Kc5
        • 2.Sd3#
      • 1...Ke3!
  • Keys
    • 1.Qa7!
      • threat
        • 2.Rb5#
      • 1...Ke3+
        • 2.Rb2#
      • 1...Kc5+
        • 2.Rf6#
      • 1...Ke5
        • 2.Re6#
        • 2.Qg7#
      • 1...Bb5
        • 2.Rxb5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(E);CHECK
      • Vars
        • K(d);P_PINQ(E),S_FLIGHT::S(B)
      • Refutation
        • K(d);P_PINQ(E),S_FLIGHT
  • Actual
    • Q(E);
    • Threat
      • QAB(E)+R(D)
    • Vars
      • K(d);CHECK,S_FLIGHT::QAB(E)+R(D)
      • B(c);::QAB(E)+R(D),XB(c)
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