MESON Chess Problem Database

Problem Display
PID: 110811 (7Q/8/1p6/1r2p2K/8/PPkPBRp1/6Rb/2N5 w - - 0 1)

Palkoska, Emil

Western Daily Mercury, 1908

7Q/8/1p6/1r2p2K/8/PPkPBRp1/6Rb/2N5

#2

9 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rxb3
      • 2.Qxe5#
      • 2.Qc8#
  • Tries
    • 1.Bg1?
      • threat
        • 2.d4#
      • 1...Rxb3
        • 2.Sa2#
        • 2.Qxe5#
        • 2.Qc8#
      • 1...Bxg1!
  • Keys
    • 1.d4!
      • threat
        • 2.Bg1#
      • 1...exd4+
        • 2.Bg5#
      • 1...e4+
        • 2.d5#
      • 1...Rxb3
        • 2.Qc8#
      • 1...Bg1
        • 2.Bxg1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(F);
      • Threat
        • R(G)+P(E)
      • Refutation
        • B(a);XB(F)
  • Actual
    • P(E);N_PINP(e)
    • Threat
      • R(G)+B(F)
    • Vars
      • P(e);CHECK,P_SPINP(e),XP(E)::R(G)+B(F)
      • P(e);CHECK::QAB(I)+P(E)
      • R(d);N_GUARD,XP(D)::QAR(I)
      • B(a);::R(G)+B(F),XB(a)
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