MESON Chess Problem Database

Problem Display
PID: 196252 (7Q/2p5/2Kp4/2p2p2/4k3/6R1/8/4B3 w - - 0 1)

Caplin, Aleksandr Borisovich

Sachova skladba, 2013

7Q/2p5/2Kp4/2p2p2/4k3/6R1/8/4B3

#2

4 + 5

SOLUTION

  • SOUND
  • Tries
    • 1.Qc3?
      • threat
        • 2.Qe3#
      • 1...Kf4
        • 2.Qe3#
      • 1...f4!
    • 1.Qh4+?
      • 1...Ke5
        • 2.Re3#
      • 1...f4!
    • 1.Qe8+?
      • 1...Kf4
        • 2.Qe3#
      • 1...Kd4!
  • Keys
    • 1.Bc3!
      • 1...Kf4
        • 2.Qh4#
      • 1...c4
        • 2.Qd4#
      • 1...f4
        • 2.Qh7#
      • 1...d5
        • 2.Qe5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(D);
      • Threat
        • QAR1(D)
      • Vars
        • K(a);P-FLIGHT::QAB1(D)
      • Refutation
        • P(c);
    • Try
      • Q(D);CHECK
      • Vars
        • K(a);P-FLIGHT::R(B)
      • Refutation
        • P(c);P_SPINP(c)
    • Try
      • Q(D);CHECK
      • Vars
        • K(a);OGATE,P-FLIGHT::QAB1(D)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • B(A);
    • Vars
      • K(a);P-FLIGHT::QAR2(D)
      • P(b);N_GUARD::QAR1(D)
      • P(c);OGATEB,SBLOCK::QAB(D)
      • P(d);N_GUARD::QAR1(D)
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