MESON Chess Problem Database

Problem Display
PID: 23098 (8/4N3/2K5/8/1pk2b2/3p4/1Q6/8 w - - 0 1)

Lincoln, Robert A

Fun with Chess Miniatures, 1996

8/4N3/2K5/8/1pk2b2/3p4/1Q6/8

#2

3 + 4

SOLUTION

  • SOUND
  • Tries
    • 1.Sd5?
      • threat
        • 2.Sb6#
        • 2.Qxb4#
      • 1...Bd2
        • 2.Sb6#
      • 1...Be3
        • 2.Sxe3#
        • 2.Qxb4#
      • 1...Bd6
        • 2.Se3#
        • 2.Sb6#
      • 1...Bc7
        • 2.Se3#
        • 2.Qxb4#
      • 1...b3
        • 2.Qc3#
      • 1...d2!
  • Keys
    • 1.Sf5!
      • 1...d2
        • 2.Qc2#
      • 1...b3
        • 2.Qd4#
      • 1...Bc1
        • 2.Sd6#
      • 1...Bd2
        • 2.Sd6#
      • 1...Bh2
        • 2.Se3#
      • 1...Be3
        • 2.Sxe3#
        • 2.Sd6#
      • 1...Bg3
        • 2.Se3#
      • 1...Be5
        • 2.Se3#
      • 1...Bg5
        • 2.Sd6#
      • 1...Bd6
        • 2.Se3#
        • 2.Sxd6#
      • 1...Bh6
        • 2.Sd6#
      • 1...Bc7
        • 2.Se3#
      • 1...Bb8
        • 2.Se3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 11
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);
      • Threat
        • DUALS(2)
      • Vars
        • B(d);::S(C)
        • P(b);N_GUARD::QAR1(A)
      • Refutation
        • P(a);
  • Actual
    • S(C);
    • Vars
      • P(a);N_GUARD::QAR2(A)
      • P(b);SBLOCK::QAR1(A)
      • B(d);N_GUARD::S(C)
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