MESON Chess Problem Database

Problem Display
PID: 234746 (B7/1R6/K1p5/2Q5/8/8/6n1/7k w - - 0 1)

Lincoln, Robert A

Kudesnik, 2014

B7/1R6/K1p5/2Q5/8/8/6n1/7k

#2

4 + 3

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Rg7?
      • 1...Se1
        • 2.Qg1#
        • 2.Qh5#
      • 1...Se3
        • 2.Qh5#
      • 1...Sf4
        • 2.Qg1#
      • 1...Sh4
        • 2.Qg1#
      • 1...Kh2!
  • Keys
    • 1.Qf2!
      • 1...Kh2
        • 2.Rh7#
      • 1...Se1
        • 2.Rh7#
      • 1...Se3
        • 2.Rh7#
      • 1...Sf4
        • 2.Rb1#
      • 1...Sh4
        • 2.Rb1#
      • 1...c5
        • 2.Rh7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(C);
      • Vars
        • S(b);N_GUARD,P_SPINP(c)::QAR(A)
        • S(b);P_SPINP(c)::QAR1(A)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • Q(A);
    • Vars
      • K(a);P-FLIGHT,P_SPINS(b)::R(C)
      • S(b);N_GUARD::R(C)
      • P(c);S_CUTS(b)::R(C)
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