MESON Chess Problem Database

Problem Display
PID: 153274 (8/8/8/B4N2/3p4/1K4Q1/4k3/4n3 w - - 0 1)

Lincoln, Robert A

StrateGems, 2012

8/8/8/B4N2/3p4/1K4Q1/4k3/4n3

#2

4 + 3

SOLUTION

  • SOUND
  • Sets
    • 1...Kd1
      • 2.Qxe1#
  • Tries
    • 1.Sxd4+?
      • 1...Kd1
        • 2.Qxe1#
      • 1...Kf1!
  • Keys
    • 1.Sh4!
      • 1...Kd1
        • 2.Qxe1#
      • 1...Kf1
        • 2.Qxe1#
      • 1...Sf3
        • 2.Qxf3#
      • 1...Sc2
        • 2.Qf3#
      • 1...Sg2
        • 2.Qf3#
      • 1...Sd3
        • 2.Qf3#
      • 1...d3
        • 2.Qxe1#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • K(b);S_FLIGHT::QAR1(B),XS(a)
  • Tries
    • Try
      • S(D);CHECK,XP(c)
      • Vars
        • K(b);S_FLIGHT::QAR1(B),XS(a)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • S(D);
    • Vars
      • K(b);S_FLIGHT::QAR1(B),XS(a)
      • S(a);N_GUARD::QAB1(B),XS(a)
      • S(a);N_GUARD::QAB1(B)
      • P(c);SBLOCK::QAR1(B),XS(a)
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