MESON Chess Problem Database

Problem Display
PID: 57383 (8/8/8/8/2K5/b2P3Q/2kN4/7R w - - 0 1)

Lincoln, Robert A

The Problemist, 2005

8/8/8/8/2K5/b2P3Q/2kN4/7R

#2

5 + 2

145 StrateGems 2011

SOLUTION

  • SOUND
  • Tries
    • 1.d4?
      • threat
        • 2.Qc3#
      • 1...Kb2
        • 2.Qb3#
      • 1...Kxd2
        • 2.Qd3#
      • 1...Bb2
        • 2.Qd3#
      • 1...Bb4!
  • Keys
    • 1.Qf1!
      • 1...Kb2
        • 2.Qb1#
      • 1...Kxd2
        • 2.Qf2#
      • 1...Bb4
        • 2.Qc1#
      • 1...Bc1
        • 2.Qxc1#
      • 1...Bb2
        • 2.Qd1#
      • 1...Bc5
        • 2.Qc1#
      • 1...Bd6
        • 2.Qc1#
      • 1...Be7
        • 2.Qc1#
      • 1...Bf8
        • 2.Qc1#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 9
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • P(C);
      • Threat
        • QAR1(D)
      • Vars
        • K(a);P-FLIGHT::QAR1(D)
        • K(a);P-FLIGHT,XS(B)::QAR1(D)
        • B(b);SBLOCK::QAB1(D)
      • Refutation
        • B(b);
  • Actual
    • Q(D);
    • Vars
      • K(a);P-FLIGHT::QAR1(D)
      • K(a);OGATEB,P-FLIGHT,XS(B)::QAR2(D)
      • B(b);N_GUARD::QAR1(D)
      • B(b);N_GUARD::QAR1(D),XB(b)
      • B(b);SBLOCK::QAB1(D)
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