MESON Chess Problem Database

Problem Display
PID: 2836 (8/7N/B2pp3/3Rp3/4kPp1/2K2b2/4NQP1/8 w - - 0 1)

Tolosa y Carreras, Jose

Source?, 1884

8/7N/B2pp3/3Rp3/4kPp1/2K2b2/4NQP1/8

#2

8 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Kxd5
      • 2.Bb7#
    • 1...exf4
      • 2.Sf6#
      • 2.Qd4#
    • 1...exd5
      • 2.Bd3#
  • Tries
    • 1.Sg3+?
      • 1...Kxd5
        • 2.Bb7#
      • 1...Kxf4!
    • 1.Sg5+?
      • 1...Kxd5
        • 2.Bb7#
      • 1...Kf5!
    • 1.Qxf3+?
      • 1...Kf5
        • 2.Bd3#
        • 2.Qd3#
      • 1...gxf3!
    • 1.gxf3+?
      • 1...Kxd5
        • 2.Bb7#
      • 1...Kf5
        • 2.Bd3#
      • 1...gxf3!
  • Keys
    • 1.f5!
      • 1...Kxd5
        • 2.Bb7#
      • 1...Kxf5
        • 2.Bd3#
      • 1...Bxe2
        • 2.Sf6#
      • 1...Bxg2
        • 2.Sf6#
      • 1...exd5
        • 2.Bd3#
      • 1...exf5
        • 2.Sf6#
      • 1...g3
        • 2.Qxf3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • K(b);OGATEB,S_FLIGHT,XR(F)::B(G)
    • P(f);SBLOCK,XR(F)::B(G)
  • Tries
    • Try
      • S(A);CHECK
      • Vars
        • K(b);S_FLIGHT,XR(F)::B(G)
      • Refutation
        • K(b);P-FLIGHT,P_SPINB(a),XP(E)
    • Try
      • S(H);CHECK
      • Vars
        • K(b);S_FLIGHT,XR(F)::B(G)
      • Refutation
        • K(b);P_SPINP(d),S_FLIGHT
    • Try
      • Q(B);CHECK,XB(a)
      • Refutation
        • P(c);XQ(B)
    • Try
      • P(C);CHECK,XB(a)
      • Vars
        • K(b);S_FLIGHT,XR(F)::B(G)
        • K(b);P_SPINP(d),S_FLIGHT::B(G)
      • Refutation
        • P(c);XP(C)
  • Actual
    • P(E);
    • Vars
      • K(b);OGATEB,S_FLIGHT,XR(F)::B(G)
      • K(b);P_SPINB(a),P_SPINP(d),S_FLIGHT,XP(E)::B(G)
      • B(a);XS(A)::S(H)
      • B(a);XP(C)::S(H)
      • P(f);SBLOCK,XR(F)::B(G)
      • P(f);SBLOCK,XP(E)::S(H)
      • P(c);N_GUARD::QAB1(B),XB(a)
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