MESON Chess Problem Database

Problem Display
PID: 159157 (3N4/6R1/8/4k3/8/2K4Q/8/8 w - - 0 1)

Akhaladze, Beka

ChessStar, 2013

3N4/6R1/8/4k3/8/2K4Q/8/8

#2

4 + 1

15148 Sadier Collection 2016

SOLUTION

  • SOUND
  • Tries
    • 1.Qf5+?
      • 1...Kd6
        • 2.Rd7#
      • 1...Kxf5!
    • 1.Qe3+?
      • 1...Kd5
        • 2.Rd7#
        • 2.Qd4#
      • 1...Kd6
        • 2.Qd4#
      • 1...Kf6
        • 2.Qg5#
      • 1...Kf5!
    • 1.Qh4?
      • 1...Kd5
        • 2.Qd4#
      • 1...Kd6
        • 2.Qd4#
      • 1...Kf5!
  • Keys
    • 1.Qg4!
      • 1...Kd5
        • 2.Qd4#
      • 1...Kd6
        • 2.Qd4#
      • 1...Kf6
        • 2.Qg5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);S_FLIGHT::R1(C)
      • Refutation
        • K(a);P-FLIGHT,XQ(B)
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);S_FLIGHT::QAR2(B)
        • K(a);S_FLIGHT::QAB1(B)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(B);
      • Vars
        • K(a);P-FLIGHT::QAR1(B)
        • K(a);S_FLIGHT::QAR2(B)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • Q(B);
    • Vars
      • K(a);P-FLIGHT::QAR1(B)
      • K(a);S_FLIGHT::QAR2(B)
      • K(a);S_FLIGHT::QAB1(B)
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