MESON Chess Problem Database

Problem Display
PID: 166224 (5Q2/5R2/8/2Pk3B/8/8/2K5/B7 w - - 0 1)

Lincoln, Robert A

Springaren, 2015

5Q2/5R2/8/2Pk3B/8/8/2K5/B7

#2

6 + 1

145 StrateGems 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Ke6
      • 2.Qd6#
  • Tries
    • 1.Kd3?
      • threat
        • 2.Qd6#
      • 1...Ke6
        • 2.Qd6#
      • 1...Kc6!
    • 1.Be2?
      • 1...Kc6
        • 2.Qd6#
      • 1...Ke6
        • 2.Bc4#
      • 1...Ke4!
    • 1.Bf3+?
      • 1...Ke6
        • 2.Re7#
        • 2.Qe7#
        • 2.Qe8#
      • 1...Kc4!
    • 1.Rf4?
      • threat
        • 2.Qd6#
      • 1...Ke6
        • 2.Qd6#
        • 2.Qf7#
      • 1...Kc6!
    • 1.Rc7?
      • 1...Ke4
        • 2.Qf3#
      • 1...Ke6
        • 2.Qf7#
      • 1...Kc4!
    • 1.Qd6+?
      • 1...Ke4
        • 2.Qe5#
        • 2.Qd3#
        • 2.Qd4#
        • 2.Qe6#
      • 1...Kc4!
    • 1.Qc8?
      • 1...Ke4
        • 2.Qe6#
      • 1...Kc4!
  • Keys
    • 1.Rb7!
      • 1...Kc4
        • 2.Bf7#
      • 1...Ke4
        • 2.Qf3#
      • 1...Kc6
        • 2.Bf3#
      • 1...Ke6
        • 2.Qf7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::QAR1(F)
  • Tries
    • Try
      • K(B);S_FLIGHT
      • Threat
        • QAR1(F)
      • Vars
        • K(a);S_FLIGHT::QAR1(F)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(D);
      • Vars
        • K(a);S_FLIGHT::QAR1(F)
        • K(a);S_FLIGHT::B(D)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(D);CHECK
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(E);
      • Threat
        • QAR1(F)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(E);
      • Vars
        • K(a);S_FLIGHT::QAB1(F)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(F);CHECK
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(F);
      • Vars
        • K(a);S_FLIGHT::QAR2(F)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • R(E);
    • Vars
      • K(a);S_FLIGHT::B(D)
      • K(a);S_FLIGHT::QAB1(F)
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