MESON Chess Problem Database

Problem Display
PID: 268550 (1QK2k2/1PpppNR1/8/r4b1N/B7/8/7b/5R2 w - - 0 1)

McClelland, David C

British Chess Magazine, 1934

1QK2k2/1PpppNR1/8/r4b1N/B7/8/7b/5R2

#2

8 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Re5
      • 2.Kxc7#
    • 1...Bg1
      • 2.Kxc7#
    • 1...Bb1
      • 2.Kxd7#
    • 1...Bc2
      • 2.Kxd7#
    • 1...Bd3
      • 2.Kxd7#
    • 1...Be4
      • 2.Kxd7#
    • 1...Bg6
      • 2.Kxd7#
    • 1...Bh7
      • 2.Kxd7#
    • 1...e6
      • 2.Kxd7#
  • Keys
    • 1.Sh6!
      • threat
        • 2.Rg8#
      • 1...d5+
        • 2.Rxf5#
      • 1...d6+
        • 2.Kxc7#
      • 1...Ke8
        • 2.Rg8#
      • 1...e5
        • 2.Kxc7#
      • 1...e6
        • 2.Kxd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 8
  • Sets
    • R(b);::QAR(G)+K(H),XP(d)
    • B(a);::QAR(G)+K(H),XP(d)
    • B(c);::QAR(G)+K(H),XP(e)
    • P(f);::QAR(G)+K(H),XP(e)
  • Actual
    • S(E);P_PINB(c)
    • Threat
      • R1(F)
    • Vars
      • P(e);CHECK,S_CUTR(b)::R(A),XB(c)
      • P(e);CHECK::QAR(G)+K(H),XP(d)
      • K(g);N_SPINB(c),P-FLIGHT,P_SPINP(e)::R(F)
      • P(f);::QAR(G)+K(H),XP(d)
      • P(f);::QAR(G)+K(H),XP(e)
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