MESON Chess Problem Database

Problem Display
PID: 154946 (BN1Q4/5p2/1Bp1pP2/R1N1k1nR/8/1P1P4/1P2K3/8 w - - 0 1)

Lopez, Manuel

Dubuque Chess Journal, 1891

BN1Q4/5p2/1Bp1pP2/R1N1k1nR/8/1P1P4/1P2K3/8

#2

12 + 5

119 Tidskrift for Schack 1909

SOLUTION

  • SOUND
  • Tries
    • 1.Se4+?
      • 1...Kf4
        • 2.Rh4#
      • 1...c5!
    • 1.Sxe6+?
      • 1...Kxe6
        • 2.Qe7#
      • 1...c5!
    • 1.Scd7+?
      • 1...Kd6
        • 2.Se5#
        • 2.Sf8#
        • 2.Bc7#
        • 2.Qc7#
        • 2.Qe7#
        • 2.Qf8#
      • 1...Kf4!
    • 1.Qd4+?
      • 1...Kxd4
        • 2.Sxe6#
      • 1...Kf5!
  • Keys
    • 1.Qg8!
      • 1...Kd4
        • 2.Sxe6#
      • 1...Kf4
        • 2.Qxg5#
      • 1...Kd5
        • 2.Se4#
      • 1...Kf5
        • 2.Qxg5#
      • 1...Kd6
        • 2.Sb7#
      • 1...Kxf6
        • 2.Qxg5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(F);CHECK
      • Vars
        • K(a);N_SPINS(b),S_FLIGHT::R(G)
      • Refutation
        • P(c);P_SPINP(c)
    • Try
      • S(F);CHECK,XP(d)
      • Vars
        • K(a);N_SPINS(b),P-FLIGHT,XS(F)::QAR1(L)
      • Refutation
        • P(c);P_SPINP(c)
    • Try
      • S(F);CHECK
      • Refutation
        • K(a);N_SPINS(b),S_FLIGHT
    • Try
      • Q(L);CHECK
      • Vars
        • K(a);N_SPINS(b),S_FLIGHT,XQ(L)::B(H)+S(F),DCHECK,XP(d)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • Q(L);
    • Vars
      • K(a);N_SPINS(b),S_FLIGHT::B(H)+S(F),DCHECK,XP(d)
      • K(a);N_SPINS(b),S_FLIGHT::QAB1(L),XS(b)
      • K(a);P-FLIGHT,P_SPINP(c)::R(E)+S(F)
      • K(a);P-FLIGHT::QAR1(L),XS(b)
      • K(a);N_SPINS(b),S_FLIGHT::S(F)
      • K(a);N_SPINS(b),S_FLIGHT,XP(I)::QAB1(L),XS(b)
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