MESON Chess Problem Database

Problem Display
PID: 87756 (8/8/8/8/3B4/p7/k1KbNR2/8 w - - 0 1)

Rosenhouse, Jason

The Problemist, 1991

8/8/8/8/3B4/p7/k1KbNR2/8

#2

4 + 3

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Bc1
      • 2.Sxc1#
    • 1...Be1
      • 2.Sc1#
    • 1...Bb4
      • 2.Sc1#
    • 1...Ba5
      • 2.Sc1#
  • Tries
    • 1.Bb2?
      • 1...Bc1
        • 2.Sxc1#
        • 2.Sc3#
      • 1...Be1
        • 2.Sc1#
      • 1...Bc3
        • 2.Sc1#
        • 2.Sxc3#
      • 1...Be3
        • 2.Sc3#
      • 1...Bb4
        • 2.Sc1#
      • 1...Bf4
        • 2.Sc3#
      • 1...Ba5
        • 2.Sc1#
      • 1...Bg5
        • 2.Sc3#
      • 1...Bh6
        • 2.Sc3#
      • 1...axb2!
  • Keys
    • 1.Rf1!
      • threat
        • 2.Ra1#
      • 1...Bc1
        • 2.Sxc1#
      • 1...Be1
        • 2.Sc1#
      • 1...Bc3
        • 2.Sxc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 2
  • Sets
    • B(b);N_GUARD::S(B),XB(b)
    • B(b);N_GUARD::S(B)
  • Tries
    • Try
      • B(D);
      • Vars
        • B(b);N_GUARD::S(B)
      • Refutation
        • P(c);XB(D)
  • Actual
    • R(C);
    • Threat
      • R1(C)
    • Vars
      • B(b);N_GUARD::S(B),XB(b)
      • B(b);N_GUARD::S(B)
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