MESON Chess Problem Database

Problem Display
PID: 69429 (8/8/4P1BQ/1p3N2/1P2k3/1K1N4/8/8 w - - 0 1)

Dupre, CEA

The Chess Monthly (Hoffer), 1883

8/8/4P1BQ/1p3N2/1P2k3/1K1N4/8/8

#2

7 + 2

SOLUTION

  • SOUND
  • Sets
    • 1...Kxd3
      • 2.Qe3#
  • Tries
    • 1.Se3+?
      • 1...Kd4
        • 2.Qf4#
      • 1...Kf3!
    • 1.Se7+?
      • 1...Kd4
        • 2.Qf4#
      • 1...Kf3!
    • 1.Bf7?
      • 1...Kxd3
        • 2.Qe3#
      • 1...Kd5
        • 2.Qh1#
      • 1...Kxf5
        • 2.Qf4#
        • 2.Qg6#
      • 1...Kf3!
    • 1.Qf4+?
      • 1...Kxd3
        • 2.Sg3#
        • 2.Sd4#
        • 2.Qe3#
      • 1...Kd5!
    • 1.Qg5?
      • 1...Kxd3
        • 2.Qe3#
      • 1...Kf3
        • 2.Sd4#
      • 1...Kd5!
  • Keys
    • 1.Bh5!
      • 1...Kxd3
        • 2.Qe3#
      • 1...Kd5
        • 2.Bf3#
      • 1...Kxf5
        • 2.Qg6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT,XS(B)::QAR1(G)
  • Tries
    • Try
      • S(D);CHECK
      • Vars
        • K(a);P-FLIGHT::QAR2(G)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(D);CHECK
      • Vars
        • K(a);P-FLIGHT::QAR2(G)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(F);
      • Vars
        • K(a);S_FLIGHT,XS(B)::QAR1(G)
        • K(a);S_FLIGHT::QAB(G)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(G);CHECK
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(G);
      • Vars
        • K(a);S_FLIGHT,XS(B)::QAR1(G)
        • K(a);S_FLIGHT::S(D)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • B(F);
    • Vars
      • K(a);S_FLIGHT,XS(B)::QAR1(G)
      • K(a);S_FLIGHT::B(F)
      • K(a);OGATEB,S_FLIGHT,XS(D)::QAB1(G)
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