MESON Chess Problem Database

Problem Display
PID: 261675 (4K3/8/2Rp2R1/1B1kb2N/6P1/4P1p1/3P2P1/8 w - - 0 1)

Somma, Francesco

L'Italia Scacchistica, 1933

4K3/8/2Rp2R1/1B1kb2N/6P1/4P1p1/3P2P1/8

#2

9 + 4

15601 Albrecht-Leiss-Degener Collection 2022

SOLUTION

  • SOUND
  • Tries
    • 1.Sf4+?
      • 1...Ke4
        • 2.Bd3#
      • 1...Bxf4!
    • 1.Sf6+?
      • 1...Ke6
        • 2.Bc4#
      • 1...Bxf6!
    • 1.Rg5?
      • 1...Ke6
        • 2.Bc4#
      • 1...Ke4!
    • 1.Rgxd6+?
      • 1...Ke4
        • 2.Bd3#
      • 1...Bxd6!
  • Keys
    • 1.Re6!
      • 1...Ke4
        • 2.Sf6#
      • 1...Kxe6
        • 2.Bc4#
      • 1...Ba1
        • 2.Sf4#
      • 1...Bb2
        • 2.Sf4#
      • 1...Bc3
        • 2.Sf4#
      • 1...Bd4
        • 2.Sf4#
      • 1...Bf4
        • 2.Sxf4#
      • 1...Bf6
        • 2.Sf4#
      • 1...Bg7
        • 2.Sf4#
      • 1...Bh8
        • 2.Sf4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 10
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(F);CHECK
      • Vars
        • K(b);N_GUARD,S_CUTB(c),S_FLIGHT::B(E)
      • Refutation
        • B(c);XS(F)
    • Try
      • S(F);CHECK
      • Vars
        • K(b);N_GUARD,P_SPINP(d),S_FLIGHT::B(E)
      • Refutation
        • B(c);XS(F)
    • Try
      • R(H);P_PINB(c)
      • Vars
        • K(b);N_GUARD,N_SPINB(c),P_SPINP(d),S_FLIGHT::B(E)
      • Refutation
        • K(b);N_SPINB(c),S_FLIGHT
    • Try
      • R(H);CHECK,XP(d)
      • Vars
        • K(b);S_CUTB(c),S_FLIGHT::B(E)
      • Refutation
        • B(c);XR(H)
  • Actual
    • R(H);
    • Vars
      • K(b);N_GUARD,P_SPINB(c),S_FLIGHT::S(F)
      • K(b);N_GUARD,P_SPINP(d),S_FLIGHT,XR(H)::B(E)
      • B(c);N_GUARD::S(F)
      • B(c);N_GUARD::S(F),XB(c)
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