MESON Chess Problem Database

Problem Display
PID: 31193 (8/8/8/8/B7/2QR4/K3kp2/8 w - - 0 1)

Trcala, Stanislav

Dom i Svet, 1905

8/8/8/8/B7/2QR4/K3kp2/8

#2

4 + 2

3437 Stanislav Trcala Sachovy odkaz 1999

SOLUTION

  • SOUND
  • Sets
    • 1...f1Q
      • 2.Qd2#
    • 1...f1B
      • 2.Qd2#
    • 1...f1R
      • 2.Qd2#
  • Tries
    • 1.Bb5?
      • threat
        • 2.Rd4#
        • 2.Rd5#
        • 2.Rd6#
        • 2.Rd7#
        • 2.Rd8#
      • 1...Kf1
        • 2.Rg3#
      • 1...f1Q
        • 2.Qd2#
      • 1...f1B
        • 2.Qd2#
      • 1...f1R
        • 2.Qd2#
      • 1...f1S!
    • 1.Rd2+?
      • 1...Ke1
        • 2.Qc1#
      • 1...Kf1!
    • 1.Qc2+?
      • 1...Ke1
        • 2.Rd1#
        • 2.Qd1#
      • 1...Kf1!
  • Keys
    • 1.Rg3!
      • 1...Kf1
        • 2.Bb5#
      • 1...f1Q
        • 2.Qe3#
      • 1...f1S
        • 2.Rg2#
      • 1...f1B
        • 2.Qe3#
      • 1...f1R
        • 2.Qe3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 3
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • P(b);SBLOCK::QAR1(B)
  • Tries
    • Try
      • B(D);
      • Threat
        • DUALS(5)
      • Vars
        • K(a);S_FLIGHT::B(D)+R(C)
        • P(b);SBLOCK::QAR1(B)
      • Refutation
        • P(b);
    • Try
      • R(C);CHECK
      • Vars
        • K(a);P-FLIGHT::QAR2(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(B);CHECK
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • R(C);
    • Vars
      • K(a);S_FLIGHT::B(D)
      • P(b);SBLOCK::QAR1(B)
      • P(b);OGATEB,SBLOCK::R(C)
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