MESON Chess Problem Database

Problem Display
PID: 187372 (1K6/8/8/k7/p7/8/1P1PB3/Q7 w - - 0 1)

Aliovsadzade, Rauf Gadzhiaga ogli

Comm., Kozhakina-25 JT, 2016

1K6/8/8/k7/p7/8/1P1PB3/Q7

#2

5 + 2

145 StrateGems 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Ka7?
      • 1...a3
        • 2.Qxa3#
      • 1...Kb4!
    • 1.Kb7?
      • 1...a3
        • 2.Qxa3#
      • 1...Kb4!
    • 1.Kc7?
      • 1...a3
        • 2.Qxa3#
      • 1...Kb4!
    • 1.Qc1?
      • threat
        • 2.Qc5#
      • 1...Kb4
        • 2.Qc3#
      • 1...Kb6
        • 2.Qc7#
      • 1...a3!
    • 1.Qg1?
      • threat
        • 2.Qc5#
      • 1...Kb4
        • 2.Qb6#
      • 1...a3!
    • 1.Qxa4+?
      • 1...Kb6
        • 2.Qb5#
      • 1...Kxa4!
  • Keys
    • 1.b4+!
      • 1...Kxb4
        • 2.Qc3#
      • 1...Kb6
        • 2.Qf6#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(E);S_FLIGHT
      • Vars
        • P(a);OGATEB::QAR2(A),XP(a)
      • Refutation
        • K(b);N_SPINP(a),S_FLIGHT
    • Try
      • K(E);P-FLIGHT
      • Vars
        • P(a);OGATEB::QAR2(A),XP(a)
      • Refutation
        • K(b);N_SPINP(a),S_FLIGHT
    • Try
      • K(E);S_FLIGHT
      • Vars
        • P(a);OGATEB::QAR2(A),XP(a)
      • Refutation
        • K(b);N_SPINP(a),S_FLIGHT
    • Try
      • Q(A);N_PINP(a)
      • Threat
        • QAR2(A)
      • Vars
        • K(b);S_FLIGHT::QAB1(A)
      • Refutation
        • P(a);
    • Try
      • Q(A);N_PINP(a)
      • Threat
        • QAR2(A)
      • Vars
        • K(b);S_FLIGHT::QAR2(A)
      • Refutation
        • P(a);
    • Try
      • Q(A);CHECK,XP(a)
      • Vars
        • K(b);S_FLIGHT::QAR1(A)
      • Refutation
        • K(b);P-FLIGHT,XQ(A)
  • Actual
    • P(B);CHECK
    • Vars
      • K(b);N_SPINP(a),S_FLIGHT,XP(B)::QAB1(A)
      • K(b);N_SPINP(a),S_FLIGHT::QAR(A)
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