MESON Chess Problem Database

Problem Display
PID: 231787 (8/1Pk5/2P5/8/5KQ1/8/2R5/3R4 w - - 0 1)

Turevski, Dmitri Evgenevich

ChessStar, 2009

8/1Pk5/2P5/8/5KQ1/8/2R5/3R4

#2

6 + 1

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Rb1?
      • threat
        • 2.b8Q#
      • 1...Kd6
        • 2.Qd7#
      • 1...Kd8
        • 2.Qd7#
      • 1...Kb8!
    • 1.Rd8?
      • threat
        • 2.b8Q#
      • 1...Kxd8
        • 2.Qd7#
      • 1...Kb6!
    • 1.Rb2?
      • threat
        • 2.Qc8#
      • 1...Kxc6
        • 2.Qc8#
      • 1...Kb8!
  • Keys
    • 1.Ra1!
      • 1...Kb6
        • 2.b8Q#
      • 1...Kd6
        • 2.Qd7#
      • 1...Kb8
        • 2.Qc8#
      • 1...Kd8
        • 2.Qd7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(A);
      • Threat
        • P=Q
      • Vars
        • K(a);S_FLIGHT::QAR1(D)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(A);
      • Threat
        • P=Q
      • Vars
        • K(a);S_FLIGHT,XR(A)::QAR1(D)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(B);
      • Threat
        • QAR1(D)
      • Vars
        • K(a);P-FLIGHT,XP(E)::QAR2(D)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • R(A);
    • Vars
      • K(a);S_FLIGHT::P=Q
      • K(a);S_FLIGHT::QAR1(D)
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