MESON Chess Problem Database

Problem Display
PID: 234706 (8/5K2/8/7k/4p3/1Q2BP2/8/7n w - - 0 1)

Lincoln, Robert A

Kudesnik, 2012

8/5K2/8/7k/4p3/1Q2BP2/8/7n

#2

4 + 3

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Qb2?
      • threat
        • 2.Qh8#
        • 2.Qh2#
      • 1...Kh4
        • 2.Qh2#
      • 1...Sf2
        • 2.Qh8#
      • 1...exf3!
    • 1.Qb8?
      • threat
        • 2.Qh2#
        • 2.Qh8#
      • 1...Kh4
        • 2.Qh2#
      • 1...Sf2
        • 2.Qh8#
      • 1...Sg3
        • 2.Qh8#
      • 1...exf3!
  • Keys
    • 1.Qe6!
      • threat
        • 2.Qh3#
        • 2.Qg4#
        • 2.Qh6#
      • 1...Kh4
        • 2.Qg4#
      • 1...exf3
        • 2.Qh3#
      • 1...Sf2
        • 2.Qh6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Vars
        • K(c);P-FLIGHT::QAR2(A)
        • S(a);::QAR(A)
      • Refutation
        • P(b);XP(C)
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Vars
        • K(c);P-FLIGHT::QAR2(A)
        • S(a);::QAR(A)
      • Refutation
        • P(b);XP(C)
  • Actual
    • Q(A);
    • Threat
      • DUALS(3)
    • Vars
      • K(c);P-FLIGHT::QAR1(A)
      • P(b);XP(C)::QAR2(A)
      • S(a);::QAR1(A)
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