MESON Chess Problem Database

Problem Display
PID: 166155 (8/8/2NK4/1kp1Q3/8/1N6/8/3R4 w - - 0 1)

Lincoln, Robert A

Comm., Problemist Ukraini TT, 2015

8/8/2NK4/1kp1Q3/8/1N6/8/3R4

#2

5 + 2

145 StrateGems 2016

SOLUTION

  • SOUND
  • Tries
    • 1.Sxc5?
      • 1...Kb6
        • 2.Rb1#
        • 2.Qb2#
      • 1...Kc4!
    • 1.Qxc5+?
      • 1...Ka4
        • 2.Qb4#
      • 1...Ka6!
  • Keys
    • 1.Qb2!
      • 1...Ka4
        • 2.Sxc5#
      • 1...Kc4
        • 2.Sba5#
      • 1...Ka6
        • 2.Sxc5#
      • 1...Kb6
        • 2.Sxc5#
      • 1...c4
        • 2.Sc5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(B);XP(b)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(C);CHECK,XP(b)
      • Vars
        • K(a);S_FLIGHT::QAR1(C)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • Q(C);N_PINP(b)
    • Vars
      • K(a);S_FLIGHT::S(B),XP(b)
      • K(a);S_FLIGHT::S(B)
      • K(a);P-FLIGHT::QAR(C)+S(B),XP(b)
      • P(b);SBLOCK::QAR(C)+S(B)
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