MESON Chess Problem Database

Problem Display
PID: 108419 (4K3/4R3/1P2b1pP/2pPk1p1/2Pn2P1/5Q2/4BP2/8 w - - 0 1)

Hirschenson, Aaron

Retter, Yosef

Pat a Mat TT, 1992

4K3/4R3/1P2b1pP/2pPk1p1/2Pn2P1/5Q2/4BP2/8

#2

10 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kd6
      • 2.Qg3#
  • Tries
    • 1.Qe3+?
      • 1...Kd6
        • 2.Qg3#
      • 1...Kf6!
    • 1.Qg3+?
      • 1...Ke4
        • 2.Bd3#
        • 2.Qe3#
      • 1...Kf6!
  • Keys
    • 1.Qc3!
      • 1...Ke4
        • 2.Qe3#
      • 1...Kf4
        • 2.Qe3#
      • 1...Kd6
        • 2.Qg3#
      • 1...Kf6
        • 2.Rxe6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(c);N_SPINB(e),S_FLIGHT::QAB(C)
  • Tries
    • Try
      • Q(C);CHECK
      • Vars
        • K(c);N_SPINB(e),S_FLIGHT::QAB(C)
      • Refutation
        • K(c);N_SPINB(e),S_FLIGHT
    • Try
      • Q(C);CHECK
      • Refutation
        • K(c);N_SPINB(e),S_FLIGHT
  • Actual
    • Q(C);P_PINS(a)
    • Vars
      • K(c);N_SPINS(a),P-FLIGHT::QAR1(C)
      • K(c);N_SPINB(e),N_SPINS(a),S_FLIGHT::QAB1(C)
      • K(c);N_SPINB(e),N_SPINS(a),S_FLIGHT::QAB(C)
      • K(c);N_SPINB(e),S_FLIGHT::R1(I),XB(e)
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