MESON Chess Problem Database

Problem Display
PID: 124228 (K7/6p1/7b/7k/2Q4p/7p/2B5/8 w - - 0 1)

Zalkind, Lazar Borissovich

La Strategie, 1915

K7/6p1/7b/7k/2Q4p/7p/2B5/8

#2

3 + 5

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Qf7+?
      • 1...Kg5
        • 2.Qf5#
      • 1...g6
        • 2.Qxg6#
      • 1...Kg4!
  • Keys
    • 1.Qe6!
      • threat
        • 2.Qg6#
      • 1...Kg5
        • 2.Qf5#
      • 1...Bg5
        • 2.Bd1#
      • 1...g5
        • 2.Bg6#
      • 1...g6
        • 2.Qxg6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(B);CHECK
      • Vars
        • K(c);P-FLIGHT::QAR1(B)
        • P(e);P_SPINP(e)::QAB1(B),XP(e)
      • Refutation
        • K(c);S_FLIGHT
  • Actual
    • Q(B);
    • Threat
      • QAB1(B)
    • Vars
      • K(c);P-FLIGHT::QAR1(B)
      • B(d);SBLOCK::B(A)
      • P(e);SBLOCK::B(A)
      • P(e);::QAB1(B),XP(e)
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