MESON Chess Problem Database

Problem Display
PID: 87615 (8/8/8/8/8/1k6/2N1BRp1/Q5Kb w - - 0 1)

Lewis, Robert Tony

The Problemist, 1983

8/8/8/8/8/1k6/2N1BRp1/Q5Kb

#2

5 + 3

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kxc2
      • 2.Bc4#
  • Tries
    • 1.Qb2+?
      • 1...Ka4
        • 2.Qa3#
        • 2.Qa2#
        • 2.Qb4#
        • 2.Qb5#
      • 1...Kxb2!
    • 1.Qb1+?
      • 1...Ka4
        • 2.Qa2#
        • 2.Qb4#
        • 2.Qb5#
      • 1...Kc3!
  • Keys
    • 1.Qc1!
      • 1...Ka2
        • 2.Bc4#
      • 1...Kc3
        • 2.Rf3#
      • 1...Ka4
        • 2.Qa3#

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • K(c);S_FLIGHT,XS(C)::R(E)+B(D)
  • Tries
    • Try
      • Q(A);CHECK
      • Refutation
        • K(c);P-FLIGHT,XQ(A)
    • Try
      • Q(A);CHECK
      • Refutation
        • K(c);P-FLIGHT
  • Actual
    • Q(A);
    • Vars
      • K(c);S_FLIGHT::B(D)
      • K(c);P-FLIGHT::R(E)
      • K(c);S_FLIGHT::QAR1(A)
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