MESON Chess Problem Database

Problem Display
PID: 142316 (7K/1Q6/4pP2/1RN1kp2/P5p1/1P4p1/2P3B1/8 w - - 0 1)

Valle, Giovanni Batista

Source?, 0000

7K/1Q6/4pP2/1RN1kp2/P5p1/1P4p1/2P3B1/8

#2

9 + 5

14868 Pirnie Collection 2011

SOLUTION

  • SOUND
  • Sets
    • 1...Kd6
      • 2.Qb8#
    • 1...Kxf6
      • 2.Qg7#
  • Tries
    • 1.Sd3+?
      • 1...Kd6
        • 2.Rb6#
        • 2.Qc6#
        • 2.Qe7#
      • 1...Kxf6
        • 2.Qg7#
      • 1...Kd4!
    • 1.Se4+?
      • 1...Kd4
        • 2.Qb6#
        • 2.Qa7#
      • 1...Kf4!
    • 1.Sxe6+?
      • 1...Kd6
        • 2.Qd5#
        • 2.Qc6#
        • 2.Qe7#
      • 1...Kxe6
        • 2.Qe7#
      • 1...Kxf6!
    • 1.Qb6?
      • 1...Kd4
        • 2.Se4#
      • 1...Kf4
        • 2.Sxe6#
      • 1...f4
        • 2.Se4#
        • 2.Sd7#
      • 1...Kxf6!
    • 1.Qc7+?
      • 1...Kxf6
        • 2.Qg7#
      • 1...Kd4!
    • 1.Qd7?
      • 1...Kxf6
        • 2.Qg7#
      • 1...f4
        • 2.Se4#
      • 1...Kf4!
    • 1.c3?
      • 1...Kd6
        • 2.Qb8#
      • 1...Kxf6
        • 2.Qg7#
      • 1...f4
        • 2.Se4#
      • 1...Kf4!
  • Keys
    • 1.Qa7!
      • 1...Kd4
        • 2.Se4#
      • 1...Kf4
        • 2.Sxe6#
      • 1...Kd6
        • 2.Qb8#
      • 1...Kxf6
        • 2.Qg7#
      • 1...f4
        • 2.Se4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(c);S_FLIGHT::QAB(H)
    • K(c);OGATEB,S_FLIGHT,XP(G)::QAB1(H)
  • Tries
    • Try
      • S(F);CHECK
      • Vars
        • K(c);S_FLIGHT,XP(G)::QAB1(H)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • S(F);CHECK
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • S(F);CHECK,XP(e)
      • Vars
        • K(c);P-FLIGHT,XS(F)::QAR1(H)
      • Refutation
        • K(c);S_FLIGHT,XP(G)
    • Try
      • Q(H);
      • Vars
        • K(c);S_FLIGHT::QAB(H)+S(F)
        • K(c);S_FLIGHT::S(F),XP(e)
      • Refutation
        • K(c);P_SPINP(e),S_FLIGHT,XP(G)
    • Try
      • Q(H);CHECK
      • Vars
        • K(c);OGATEB,S_FLIGHT,XP(G)::QAB1(H)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(H);
      • Vars
        • K(c);OGATEB,S_FLIGHT,XP(G)::QAB1(H)
        • P(d);SBLOCK::R(E)+S(F)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • P(A);
      • Vars
        • K(c);S_FLIGHT::QAB(H)
        • K(c);OGATEB,S_FLIGHT,XP(G)::QAB1(H)
        • P(d);SBLOCK::R(E)+S(F)
      • Refutation
        • K(c);S_FLIGHT
  • Actual
    • Q(H);
    • Vars
      • K(c);S_FLIGHT::QAB(H)+S(F)
      • K(c);S_FLIGHT::S(F),XP(e)
      • K(c);S_FLIGHT::QAB(H)
      • K(c);OGATEB,S_FLIGHT,XP(G)::QAB1(H)
      • P(d);SBLOCK::R(E)+S(F)
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