MESON Chess Problem Database

Problem Display
PID: 158854 (8/2PQ4/4R3/3pPb1p/4k2K/3N4/3P4/2N5 w - - 0 1)

Grunfeld, Max

British Chess Magazine 13. Ty., 1906-1907

8/2PQ4/4R3/3pPb1p/4k2K/3N4/3P4/2N5

#2

8 + 4

SOLUTION

  • SOUND
  • Sets
    • 1...Kd4
      • 2.Qa4#
    • 1...d4
      • 2.Qc6#
  • Tries
    • 1.Qa4+?
      • 1...d4
        • 2.Qc6#
        • 2.Qa8#
      • 1...Kf3!
  • Keys
    • 1.Rf6!
      • 1...Kf3
        • 2.Qxd5#
      • 1...Kd4
        • 2.Qa4#
      • 1...Bxd7
        • 2.Rf4#
      • 1...Bh3
        • 2.Rf4#
      • 1...Bg4
        • 2.Rf4#
      • 1...Be6
        • 2.Rf4#
      • 1...Bg6
        • 2.Rf4#
      • 1...Bh7
        • 2.Rf4#
      • 1...d4
        • 2.Qc6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
    • K(a);P-FLIGHT,P_SPINP(b)::QAR(H)
    • P(b);OGATEB,SBLOCK::QAB(H)
  • Tries
    • Try
      • Q(H);CHECK
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • R(F);
    • Vars
      • K(a);P_SPINB(c),S_FLIGHT::QAB(H),XP(b)
      • K(a);P-FLIGHT,P_SPINP(b)::QAR(H)
      • B(c);OGATE,XQ(H)::R1(F)
      • B(c);OGATE::R1(F)
      • P(b);OGATEB,SBLOCK::QAB(H)
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