MESON Chess Problem Database

Problem Display
PID: 99264 (2bQ4/1p1p4/2k5/p3R3/p7/K2PN3/8/8 w - - 0 1)

Lebloch, Ivo

Sakkelet, 1991

2bQ4/1p1p4/2k5/p3R3/p7/K2PN3/8/8

#2

5 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Sc4?
      • threat
        • 2.Qb6#
        • 2.Qxc8#
      • 1...b6
        • 2.Qxb6#
        • 2.Qxc8#
      • 1...d6
        • 2.Sxa5#
        • 2.Qxd6#
        • 2.Qxc8#
      • 1...d5!
    • 1.Rd5?
      • 1...b6
        • 2.Qxc8#
      • 1...d6
        • 2.Qxd6#
      • 1...b5!
    • 1.Qxc8+?
      • 1...Kd6
        • 2.Sc4#
        • 2.Qc5#
      • 1...Kb6!
  • Keys
    • 1.Sd5!
      • threat
        • 2.Qb6#
      • 1...Kb5
        • 2.Qb6#
      • 1...Kc5
        • 2.Qb6#
      • 1...Kd6
        • 2.Qc7#
      • 1...b6
        • 2.Qxb6#
      • 1...d6
        • 2.Se7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);
      • Threat
        • DUALS(2)
      • Refutation
        • P(e);
    • Try
      • R(D);
      • Vars
        • P(d);SBLOCK::QAR2(E),XB(f)
        • P(e);OGATE::QAR1(E),XP(e)
      • Refutation
        • P(d);
    • Try
      • Q(E);CHECK,XB(f)
      • Refutation
        • K(c);P-FLIGHT
  • Actual
    • S(C);
    • Threat
      • QAR1(E)
    • Vars
      • K(c);S_FLIGHT::QAR1(E)
      • K(c);P-FLIGHT::QAB1(E)
      • K(c);P-FLIGHT,P_SPINP(e)::QAB1(E)
      • P(d);::QAR1(E),XP(d)
      • P(e);::S(C)
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