MESON Chess Problem Database

Problem Display
PID: 149579 (8/8/1Q3n2/5B2/2kB4/8/p2K4/8 w - - 0 1)

Szasz, Lajos

Source?, 1998

8/8/1Q3n2/5B2/2kB4/8/p2K4/8

#2

4 + 3

15148 Sadier Collection 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Kd5
      • 2.Qc5#
    • 1...Sg4
      • 2.Be6#
    • 1...Sd5
      • 2.Bd3#
    • 1...Sh5
      • 2.Be6#
    • 1...Sd7
      • 2.Be6#
    • 1...Sh7
      • 2.Be6#
    • 1...Se8
      • 2.Be6#
    • 1...Sg8
      • 2.Be6#
  • Tries
    • 1.Kc2?
      • threat
        • 2.Qc5#
      • 1...Kd5
        • 2.Qc5#
      • 1...Se4
        • 2.Be6#
      • 1...Sd7
        • 2.Be6#
      • 1...a1S+!
    • 1.Qb4+?
      • 1...Kd5
        • 2.Qc5#
      • 1...Kxb4!
  • Keys
    • 1.Qc5+!
      • 1...Kb3
        • 2.Bc2#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 8
  • Sets
    • K(b);S_FLIGHT::QAR1(D)
    • S(c);N_GUARD::B(C)
    • S(c);SBLOCK::B(C)
  • Tries
    • Try
      • K(A);P-FLIGHT
      • Threat
        • QAR1(D)
      • Vars
        • K(b);S_FLIGHT::QAR1(D)
        • S(c);N_GUARD::B(C)
      • Refutation
        • P(a);CHECK
    • Try
      • Q(D);CHECK
      • Vars
        • K(b);S_FLIGHT::QAR1(D)
      • Refutation
        • K(b);P-FLIGHT,XQ(D)
  • Actual
    • Q(D);CHECK
    • Vars
      • K(b);S_FLIGHT::B(C)
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