MESON Chess Problem Database

Problem Display
PID: 138822 (8/1R6/8/kN5R/8/p7/4K3/5B2 w - - 0 1)

Lincoln, Robert A

StrateGems, 2010

8/1R6/8/kN5R/8/p7/4K3/5B2

#2

5 + 2

SOLUTION

  • SOUND
  • Sets
    • 1...Ka4
      • 2.Sc3#
  • Tries
    • 1.Kd1?
      • threat
        • 2.Sc3#
      • 1...Ka4
        • 2.Sc3#
      • 1...Ka6
        • 2.Sd6#
      • 1...Kb4!
    • 1.Ke1?
      • threat
        • 2.Sc3#
      • 1...Ka4
        • 2.Sc3#
      • 1...Ka6
        • 2.Sd6#
      • 1...Kb4!
    • 1.Kf2?
      • threat
        • 2.Sc3#
      • 1...Ka4
        • 2.Sc3#
      • 1...Ka6
        • 2.Sd6#
      • 1...Kb4!
    • 1.Ke3?
      • threat
        • 2.Sc3#
      • 1...Ka4
        • 2.Sc3#
      • 1...Ka6
        • 2.Sd6#
      • 1...Kb4!
    • 1.Kf3?
      • threat
        • 2.Sc3#
      • 1...Ka4
        • 2.Sc3#
      • 1...Ka6
        • 2.Sd6#
      • 1...Kb4!
    • 1.Sd6+?
      • 1...Ka6
        • 2.Kd1#
        • 2.Ke1#
        • 2.Kd2#
        • 2.Kf2#
        • 2.Ke3#
        • 2.Kf3#
      • 1...Ka4!
  • Keys
    • 1.Kd2!
      • threat
        • 2.Sc3#
      • 1...Ka4
        • 2.Sc3#
      • 1...Kb4
        • 2.Sc3#
      • 1...Ka6
        • 2.Sd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(b);P-FLIGHT::S(C)
  • Tries
    • Try
      • K(B);S_FLIGHT
      • Threat
        • R(D)+S(C)
      • Vars
        • K(b);P-FLIGHT::S(C)
        • K(b);P-FLIGHT::B(A)+S(C)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • K(B);P-FLIGHT
      • Threat
        • R(D)+S(C)
      • Vars
        • K(b);P-FLIGHT::S(C)
        • K(b);P-FLIGHT::B(A)+S(C)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • K(B);P-FLIGHT
      • Threat
        • R(D)+S(C)
      • Vars
        • K(b);P-FLIGHT::S(C)
        • K(b);P-FLIGHT::B(A)+S(C)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • K(B);P-FLIGHT
      • Threat
        • R(D)+S(C)
      • Vars
        • K(b);P-FLIGHT::S(C)
        • K(b);P-FLIGHT::B(A)+S(C)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • K(B);S_FLIGHT
      • Threat
        • R(D)+S(C)
      • Vars
        • K(b);P-FLIGHT::S(C)
        • K(b);P-FLIGHT::B(A)+S(C)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • S(C);CHECK
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • K(B);P-FLIGHT
    • Threat
      • R(D)+S(C)
    • Vars
      • K(b);P-FLIGHT::S(C)
      • K(b);S_FLIGHT::R(E)+S(C)
      • K(b);P-FLIGHT::B(A)+S(C)
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