MESON Chess Problem Database

Problem Display
PID: 160610 (5N2/8/4pK1p/7k/5Q2/7r/8/8 w - - 0 1)

Lincoln, Robert A

British Chess Magazine, 2014

5N2/8/4pK1p/7k/5Q2/7r/8/8

#2

3 + 4

SOLUTION

  • SOUND
  • Tries
    • 1.Qf3+?
      • 1...Kh4
        • 2.Sg6#
      • 1...Rxf3+!
  • Keys
    • 1.Sg6!
      • 1...Rh1
        • 2.Qf3#
      • 1...Rh2
        • 2.Qf3#
      • 1...Ra3
        • 2.Qh4#
      • 1...Rb3
        • 2.Qh4#
      • 1...Rc3
        • 2.Qh4#
      • 1...Rd3
        • 2.Qh4#
      • 1...Re3
        • 2.Qh4#
      • 1...Rf3
        • 2.Qxf3#
      • 1...Rg3
        • 2.Qh4#
      • 1...Rh4
        • 2.Qxh4#
      • 1...e5
        • 2.Qf5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 11
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);P-FLIGHT::S(C)
      • Refutation
        • R(a);CHECK,XQ(A)
  • Actual
    • S(C);
    • Vars
      • R(a);N_GUARD::QAB(A)
      • R(a);N_GUARD::QAR1(A)
      • R(a);N_GUARD,P_PINQ(A)::QAB(A),XR(a)
      • R(a);N_GUARD::QAR1(A),XR(a)
      • P(c);N_GUARD::QAR2(A)
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