MESON Chess Problem Database

Problem Display
PID: 108346 (3k1K2/N1ppp3/7R/8/8/8/8/4B3 w - - 0 1)

Guay, Georges

L'Opinion Publique, 1888

3k1K2/N1ppp3/7R/8/8/8/8/4B3

#2

4 + 4

5454 Near Snap 2009
6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...c5
      • 2.Ba5#
    • 1...c6
      • 2.Ba5#
    • 1...e5
      • 2.Bh4#
    • 1...e6
      • 2.Bh4#
  • Tries
    • 1.Rh5?
      • 1...c5
        • 2.Ba5#
      • 1...c6
        • 2.Ba5#
      • 1...d5
        • 2.Rxd5#
      • 1...e5
        • 2.Bh4#
      • 1...e6
        • 2.Bh4#
      • 1...d6!
  • Keys
    • 1.Rd6!
      • 1...cxd6
        • 2.Ba5#
      • 1...exd6
        • 2.Bh4#
      • 1...c5
        • 2.Ba5#
      • 1...c6
        • 2.Ba5#
      • 1...e5
        • 2.Bh4#
      • 1...e6
        • 2.Bh4#

Anticipated by 2533(0000)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • P(a);OGATEB::B(A)
    • P(c);OGATEB::B(A)
  • Tries
    • Try
      • R(B);
      • Vars
        • P(a);OGATEB::B(A)
        • P(b);OGATEB::R(B),XP(b)
        • P(c);OGATEB::B(A)
      • Refutation
        • P(b);
  • Actual
    • R(B);P_PINP(b)
    • Vars
      • P(a);N_SPINP(b),OGATEB,XR(B)::B(A)
      • P(c);N_SPINP(b),OGATEB,XR(B)::B(A)
      • P(a);OGATEB::B(A)
      • P(c);OGATEB::B(A)
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