MESON Chess Problem Database

Problem Display
PID: 46523 (8/8/8/1K2pQ2/3kB3/8/P7/5N2 w - - 0 1)

Sebillotte, Regis

Comm., diagrammes, 1986

8/8/8/1K2pQ2/3kB3/8/P7/5N2

#2

5 + 2

4883 Still More Fun with Chess Miniatures 2002

SOLUTION

  • SOUND
  • Sets
    • 1...Kc3
      • 2.Qxe5#
  • Tries
    • 1.Bc2?
      • threat
        • 2.Qd3#
      • 1...Kd5
        • 2.Qd7#
      • 1...e4
        • 2.Qc5#
      • 1...Kc3!
    • 1.Qe6?
      • threat
        • 2.Qc4#
      • 1...Kc3
        • 2.Qxe5#
      • 1...Kxe4!
    • 1.Qd7+?
      • 1...Kc3
        • 2.Qd2#
      • 1...Kxe4!
    • 1.Qf2+?
      • 1...Kc3
        • 2.Qd2#
      • 1...Kxe4!
    • 1.Qf4?
      • threat
        • 2.Qe3#
      • 1...Kc3
        • 2.Qd2#
        • 2.Qxe5#
      • 1...exf4!
    • 1.Qg5?
      • threat
        • 2.Qe3#
      • 1...Kc3
        • 2.Qd2#
        • 2.Qxe5#
      • 1...Kxe4!
    • 1.Qh5?
      • 1...Kc3
        • 2.Qxe5#
      • 1...Kxe4!
    • 1.Qf6?
      • 1...Kc3
        • 2.Qxe5#
      • 1...Kxe4!
    • 1.Qf8?
      • threat
        • 2.Qb4#
      • 1...Kc3
        • 2.Qb4#
      • 1...Kxe4!
  • Keys
    • 1.Bb1!
      • threat
        • 2.Qd3#
      • 1...Kc3
        • 2.Qxe5#
      • 1...Kd5
        • 2.Qd7#
      • 1...e4
        • 2.Qc5#

FEATURES

  • Static
    • TYPE = BLOCK_THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::QAB(E),XP(b)
  • Tries
    • Try
      • B(C);
      • Threat
        • QAR1(E)
      • Vars
        • K(a);P-FLIGHT,P_SPINP(b)::QAR2(E)
        • P(b);OGATE::QAB1(E)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(E);
      • Threat
        • QAR1(E)
      • Vars
        • K(a);S_FLIGHT::QAB(E),XP(b)
      • Refutation
        • K(a);P-FLIGHT,P_SPINP(b),XB(C)
    • Try
      • Q(E);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT::QAB1(E)
      • Refutation
        • K(a);P-FLIGHT,XB(C)
    • Try
      • Q(E);CHECK
      • Vars
        • K(a);S_FLIGHT::QAB1(E)
      • Refutation
        • K(a);P-FLIGHT,XB(C)
    • Try
      • Q(E);
      • Threat
        • QAB1(E)
      • Refutation
        • P(b);XQ(E)
    • Try
      • Q(E);
      • Threat
        • QAB1(E)
      • Refutation
        • K(a);P-FLIGHT,XB(C)
    • Try
      • Q(E);
      • Vars
        • K(a);S_FLIGHT::QAB(E),XP(b)
      • Refutation
        • K(a);P-FLIGHT,XB(C)
    • Try
      • Q(E);P_PINP(b)
      • Vars
        • K(a);S_FLIGHT::QAB(E),XP(b)
      • Refutation
        • K(a);N_SPINP(b),P-FLIGHT,XB(C)
    • Try
      • Q(E);
      • Threat
        • QAR2(E)
      • Vars
        • K(a);S_FLIGHT::QAB1(E)
      • Refutation
        • K(a);P-FLIGHT,XB(C)
  • Actual
    • B(C);
    • Threat
      • QAR1(E)
    • Vars
      • K(a);S_FLIGHT::QAB(E),XP(b)
      • K(a);P-FLIGHT,P_SPINP(b)::QAR2(E)
      • P(b);OGATE::QAB1(E)
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