MESON Chess Problem Database

Problem Display
PID: 218469 (5B2/4N3/1Pp1P3/2Nnk1p1/6B1/1K1R4/5P2/8 w - - 0 1)

Leprettel, Henri (Pelletret, Henri Elisabeth)

Philadelphia Times, 1882

5B2/4N3/1Pp1P3/2Nnk1p1/6B1/1K1R4/5P2/8

#2

9 + 4

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Kd6
      • 2.Sg6#
    • 1...Kf6
      • 2.Sd7#
    • 1...Sf4
      • 2.Bg7#
    • 1...Sf6
      • 2.Sg6#
  • Tries
    • 1.Sd7+?
      • 1...Kf4
        • 2.Rd4#
      • 1...Kd6
        • 2.Sxd5#
        • 2.Sg6#
        • 2.Sc8#
        • 2.Sg8#
      • 1...Ke4!
    • 1.Sxc6+?
      • 1...Kf4
        • 2.Rd4#
      • 1...Kf6!
    • 1.Bg7+?
      • 1...Kf4
        • 2.Rd4#
      • 1...Sf6
        • 2.Sg6#
      • 1...Kd6!
    • 1.Re3+?
      • 1...Kd4
        • 2.Sf5#
        • 2.Sxc6#
      • 1...Kf4
        • 2.Re4#
      • 1...Kd6
        • 2.Sb7#
        • 2.Sf5#
        • 2.Sc8#
      • 1...Kf6
        • 2.Sd7#
      • 1...Sxe3!
  • Keys
    • 1.Rd4!
      • 1...Kxd4
        • 2.Sxc6#
      • 1...Kd6
        • 2.Sg6#
      • 1...Kf6
        • 2.Sd7#
      • 1...Sxb6
        • 2.Bg7#
      • 1...Sxe7
        • 2.Bg7#
      • 1...Sc3
        • 2.Bg7#
      • 1...Se3
        • 2.Bg7#
      • 1...Sb4
        • 2.Bg7#
      • 1...Sf4
        • 2.Bg7#
      • 1...Sf6
        • 2.Sxc6#
      • 1...Sc7
        • 2.Bg7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
    • K(b);P_SPINS(a),S_FLIGHT::B(I)+S(H)
    • K(b);S_FLIGHT::S(E)
    • S(a);N_GUARD,SBLOCK::B(I)
    • S(a);SBLOCK::S(H)
  • Tries
    • Try
      • S(E);CHECK
      • Vars
        • K(b);S_FLIGHT::R(C)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • S(H);CHECK,XP(d)
      • Vars
        • K(b);S_FLIGHT::R(C)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • B(I);CHECK
      • Vars
        • K(b);S_FLIGHT::R(C)
        • S(a);P_SPINS(a)::S(H)
      • Refutation
        • K(b);P_SPINS(a),S_FLIGHT
    • Try
      • R(C);CHECK
      • Vars
        • K(b);S_FLIGHT::R1(C)
        • K(b);S_FLIGHT::S(E)
      • Refutation
        • S(a);XR(C)
  • Actual
    • R(C);
    • Vars
      • K(b);S_FLIGHT,XR(C)::S(H),XP(d)
      • K(b);P_SPINS(a),S_FLIGHT::B(I)+S(H)
      • K(b);S_FLIGHT::S(E)
      • S(a);N_GUARD,XP(F)::B(I)
      • S(a);N_GUARD,XS(H)::B(I)
      • S(a);N_GUARD::B(I)
      • S(a);SBLOCK::S(H),XP(d)
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