MESON Chess Problem Database

Problem Display
PID: 159155 (6K1/8/6p1/6pk/8/4Q2P/6B1/8 w - - 0 1)

Akhaladze, Beka

ChessStar, 2013

6K1/8/6p1/6pk/8/4Q2P/6B1/8

#2

4 + 3

15148 Sadier Collection 2016
3713 Snap 2016

SOLUTION

  • SOUND
  • Tries
    • 1.Kg7?
      • 1...g4
        • 2.Qh6#
      • 1...Kh4!
    • 1.Kh7?
      • 1...g4
        • 2.Qh6#
      • 1...Kh4!
    • 1.Qd4?
      • threat
        • 2.Qh8#
      • 1...Kh6
        • 2.Qh8#
      • 1...g4!
    • 1.Qe5?
      • threat
        • 2.Qh8#
      • 1...Kh6
        • 2.Qh8#
      • 1...Kh4!
  • Keys
    • 1.h4!
      • threat
        • 2.Qxg5#
      • 1...Kg4
        • 2.Qxg5#
      • 1...Kxh4
        • 2.Qh3#
      • 1...Kh6
        • 2.Qxg5#
      • 1...gxh4
        • 2.Bf3#
      • 1...g4
        • 2.Qg5#

Anticipated by 133801(1983)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(D);P-FLIGHT
      • Vars
        • P(a);OGATE::QAR1(B)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • K(D);S_FLIGHT
      • Vars
        • P(a);OGATE::QAR1(B)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(B);
      • Threat
        • QAR(B)
      • Vars
        • K(b);P-FLIGHT::QAR2(B)
      • Refutation
        • P(a);
    • Try
      • Q(B);P_PINP(a)
      • Threat
        • QAR(B)
      • Vars
        • K(b);N_SPINP(a),P-FLIGHT::QAR2(B)
      • Refutation
        • K(b);N_SPINP(a),P-FLIGHT
  • Actual
    • P(C);
    • Threat
      • QAR1(B),XP(a)
    • Vars
      • K(b);S_FLIGHT::QAR1(B),XP(a)
      • K(b);OGATEB,P-FLIGHT,XP(C)::QAR1(B)
      • K(b);P-FLIGHT,P_SPINP(a)::QAB1(B),XP(a)
      • P(a);N_GUARD,SBLOCK,XP(C)::B(A)
      • P(a);::QAR1(B)
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