MESON Chess Problem Database

Problem Display
PID: 50543 (8/B7/2p5/1Q6/8/7p/4K1kp/8 w - - 0 1)

Lincoln, Robert A

Kudesnik, 2001

8/B7/2p5/1Q6/8/7p/4K1kp/8

#2

3 + 4

145 StrateGems 2003

SOLUTION

  • SOUND
  • Sets
    • 1...Kh1
      • 2.Qxc6#
    • 1...Kg3
      • 2.Qg5#
  • Tries
    • 1.Qd5+?
      • 1...Kg3
        • 2.Qg5#
      • 1...cxd5!
  • Keys
    • 1.Qc5!
      • 1...Kh1
        • 2.Qxc6#
      • 1...Kg3
        • 2.Qg5#
      • 1...h1Q
        • 2.Qf2#
      • 1...h1S
        • 2.Qg1#
      • 1...h1B
        • 2.Qg1#
        • 2.Qf2#
      • 1...h1R
        • 2.Qf2#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::QAB(B),XP(d)
    • K(a);P-FLIGHT::QAR2(B)
  • Tries
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);P-FLIGHT::QAR2(B)
      • Refutation
        • P(d);XQ(B)
  • Actual
    • Q(B);
    • Vars
      • K(a);S_FLIGHT::QAB(B),XP(d)
      • K(a);P-FLIGHT::QAR2(B)
      • P(b);SBLOCK::QAR1(B)
      • P(b);N_GUARD::QAR1(B)
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