MESON Chess Problem Database

Problem Display
PID: 135618 (8/2NB4/8/8/4kp2/1P6/8/4K1Q1 w - - 0 1)

Lincoln, Robert A

StrateGems, 2010

8/2NB4/8/8/4kp2/1P6/8/4K1Q1

#2

5 + 2

SOLUTION

  • SOUND
  • Sets
    • 1...Kf3
      • 2.Bc6#
  • Tries
    • 1.Kd2?
      • 1...Kf3
        • 2.Bc6#
      • 1...f3
        • 2.Qe3#
      • 1...Ke5!
  • Keys
    • 1.Sb5!
      • 1...Kd3
        • 2.Bf5#
      • 1...Kf3
        • 2.Bc6#
      • 1...Kd5
        • 2.Qd4#
      • 1...Ke5
        • 2.Qd4#
      • 1...f3
        • 2.Qd4#

There are these versions: 169969

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::B(E)
  • Tries
    • Try
      • K(A);S_FLIGHT
      • Vars
        • K(a);S_FLIGHT::B(E)
        • P(b);N_GUARD::QAR1(B)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • S(D);
    • Vars
      • K(a);S_FLIGHT::B(E)
      • K(a);S_FLIGHT::QAR1(B)
      • K(a);P-FLIGHT::QAB1(B)
      • P(b);SBLOCK::QAR1(B)
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