MESON Chess Problem Database

Problem Display
PID: 28616 (B7/5n2/8/7K/1QN2k2/8/8/8 w - - 0 1)

Labonte, Georges

La Patrie, 1923

B7/5n2/8/7K/1QN2k2/8/8/8

#2

4 + 2

3248 Miniatures canadiennes 2000

SOLUTION

  • SOUND
  • Tries
    • 1.Qe1?
      • threat
        • 2.Qf2#
      • 1...Se5
        • 2.Qxe5#
      • 1...Sg5
        • 2.Qe5#
      • 1...Kf5!
    • 1.Qc3?
      • threat
        • 2.Qf3#
      • 1...Se5
        • 2.Qxe5#
      • 1...Sg5
        • 2.Qe5#
      • 1...Kf5!
    • 1.Qa5?
      • 1...Se5
        • 2.Qxe5#
      • 1...Sg5
        • 2.Qe5#
        • 2.Qxg5#
      • 1...Sd6
        • 2.Qe5#
        • 2.Qg5#
      • 1...Sh6
        • 2.Qe5#
        • 2.Qg5#
      • 1...Sd8
        • 2.Qe5#
        • 2.Qg5#
      • 1...Sh8
        • 2.Qe5#
        • 2.Qg5#
      • 1...Kg3!
    • 1.Qc5?
      • threat
        • 2.Qf2#
      • 1...Se5
        • 2.Qxe5#
      • 1...Sg5
        • 2.Qe5#
        • 2.Qxg5#
      • 1...Kg3!
    • 1.Qd6+?
      • 1...Kf5
        • 2.Se3#
      • 1...Se5
        • 2.Qxe5#
      • 1...Sxd6!
    • 1.Qf8?
      • 1...Kf5
        • 2.Qxf7#
      • 1...Kg3!
    • 1.Qb5?
      • 1...Se5
        • 2.Qxe5#
      • 1...Sg5
        • 2.Qe5#
        • 2.Qxg5#
      • 1...Sd6
        • 2.Qe5#
        • 2.Qg5#
      • 1...Sh6
        • 2.Qe5#
        • 2.Qg5#
      • 1...Sd8
        • 2.Qe5#
        • 2.Qg5#
      • 1...Sh8
        • 2.Qe5#
        • 2.Qg5#
      • 1...Kg3!
  • Keys
    • 1.Qe7!
      • 1...Kg3
        • 2.Qh4#
      • 1...Kf5
        • 2.Qxf7#
      • 1...Se5
        • 2.Qg5#
        • 2.Qxe5#
      • 1...Sg5
        • 2.Qxg5#
        • 2.Qe5#
      • 1...Sd6
        • 2.Qg5#
        • 2.Qe5#
      • 1...Sh6
        • 2.Qg5#
        • 2.Qe5#
      • 1...Sd8
        • 2.Qg5#
        • 2.Qe5#
      • 1...Sh8
        • 2.Qg5#
        • 2.Qe5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);
      • Threat
        • QAR2(A)
      • Vars
        • S(b);N_GUARD::QAB1(A),XS(b)
        • S(b);N_GUARD::QAB1(A)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(A);
      • Threat
        • QAR1(A)
      • Vars
        • S(b);N_GUARD::QAB1(A),XS(b)
        • S(b);N_GUARD::QAB1(A)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(A);
      • Vars
        • S(b);N_GUARD::QAB1(A),XS(b)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);
      • Threat
        • QAR2(A)
      • Vars
        • S(b);N_GUARD::QAB1(A),XS(b)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);P-FLIGHT::S(B)
        • S(b);N_GUARD,P_SPINS(b)::QAB1(A),XS(b)
      • Refutation
        • S(b);XQ(A)
    • Try
      • Q(A);P_PINS(b)
      • Vars
        • K(a);P-FLIGHT::QAR2(A),XS(b)
      • Refutation
        • K(a);N_SPINS(b),S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • S(b);N_GUARD::QAB1(A),XS(b)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • Q(A);
    • Vars
      • K(a);S_FLIGHT::QAB1(A)
      • K(a);P-FLIGHT::QAR2(A),XS(b)
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