MESON Chess Problem Database

Problem Display
PID: 232209 (3K4/8/2pkb3/1p6/8/8/1BQ5/8 w - - 0 1)

Chayka, Arina

Kudesnik, 2014

3K4/8/2pkb3/1p6/8/8/1BQ5/8

#2

3 + 4

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Qd1+?
      • 1...Kc5
        • 2.Qd4#
      • 1...Bd5!
    • 1.Qd3+?
      • 1...Kc5
        • 2.Qd4#
      • 1...Bd5!
    • 1.Qd2+?
      • 1...Kc5
        • 2.Qd4#
      • 1...Bd5!
  • Keys
    • 1.Qe4!
      • threat
        • 2.Qe5#
      • 1...Kc5
        • 2.Qd4#
      • 1...Bd5
        • 2.Qe7#
      • 1...c5
        • 2.Be5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(B);CHECK
      • Vars
        • K(c);S_FLIGHT::QAB1(B)
      • Refutation
        • B(d);P_SPINB(d)
    • Try
      • Q(B);CHECK
      • Vars
        • K(c);S_FLIGHT::QAB1(B)
      • Refutation
        • B(d);P_SPINB(d)
    • Try
      • Q(B);CHECK
      • Vars
        • K(c);S_FLIGHT::QAB1(B)
      • Refutation
        • B(d);P_SPINB(d)
  • Actual
    • Q(B);
    • Threat
      • QAB1(B)
    • Vars
      • K(c);S_FLIGHT::QAB1(B)
      • B(d);OGATE,SBLOCK::QAB1(B)
      • P(b);SBLOCK::B(A)
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