MESON Chess Problem Database

Problem Display
PID: 43065 (8/8/2Q5/2P5/2k5/5R2/NB6/K7 w - - 0 1)

Mansfield, Comins

De Waarheid (Miniature Ty.), 1969

8/8/2Q5/2P5/2k5/5R2/NB6/K7

#2

6 + 1

4054 Complete Mansfield/III 1999
5454 Near Snap 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Rf2?
      • 1...Kb3
        • 2.Qb5#
      • 1...Kd3!
    • 1.Rf4+?
      • 1...Kb3
        • 2.Qa4#
      • 1...Kd3!
    • 1.Qa6+?
      • 1...Kxc5
        • 2.Rf5#
      • 1...Kd5!
    • 1.Qe6+?
      • 1...Kxc5
        • 2.Rf5#
      • 1...Kb5!
  • Keys
    • 1.Sc3!
      • 1...Kb3
        • 2.Qa4#
      • 1...Kb4
        • 2.Qb5#
      • 1...Kd4
        • 2.Qd5#

This anticipates 11855(1972), 11858(1972), 110127(1999)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(D);
      • Vars
        • K(a);S_FLIGHT::QAR2(F)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(D);CHECK
      • Vars
        • K(a);S_FLIGHT::QAB1(F)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(F);CHECK
      • Vars
        • K(a);P-FLIGHT,XP(E)::R(D)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(F);CHECK
      • Vars
        • K(a);P-FLIGHT,XP(E)::R(D)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • S(B);
    • Vars
      • K(a);S_FLIGHT::QAB1(F)
      • K(a);P-FLIGHT::QAR1(F)
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