MESON Chess Problem Database

Problem Display
PID: 68921 (1b1R4/1p6/b2n4/1B5R/1Kn2pN1/1NPk1p2/2p1p3/4r3 w - - 0 1)

Pratt, R

Grantham Journal, 1925

1b1R4/1p6/b2n4/1B5R/1Kn2pN1/1NPk1p2/2p1p3/4r3

#2

7 + 11

785 Het Belgisch Schaakbord (L'Echiquier Belge) 1956

SOLUTION

  • SOUND
  • Sets
    • 1...Ke4
      • 2.Sc5#
  • Tries
    • 1.Bxc4+?
      • 1...Ke4
        • 2.Sd2#
        • 2.Sc5#
        • 2.Re5#
      • 1...Bxc4!
    • 1.Be8?
      • threat
        • 2.Bg6#
      • 1...Ke4
        • 2.Sc5#
      • 1...Sd2
        • 2.Sc5#
      • 1...Se3
        • 2.Sf2#
      • 1...Se5!
    • 1.Rxd6+?
      • 1...Ke4
        • 2.Sc5#
        • 2.Rd4#
      • 1...Bxd6+!
  • Keys
    • 1.Bd7!
      • threat
        • 2.Bf5#
      • 1...Ke4
        • 2.Sc5#
      • 1...Sd2
        • 2.Sc5#
      • 1...Se3
        • 2.Sf2#
      • 1...Se4
        • 2.Rd5#
      • 1...Sf5
        • 2.Bxf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • K(d);N_SPINS(f),S_FLIGHT::S(A)
  • Tries
    • Try
      • B(E);CHECK,P_PINS(i),XS(f)
      • Refutation
        • B(h);XB(E)
    • Try
      • B(E);N_PINS(f),P_PINS(i)
      • Threat
        • B(E)
      • Vars
        • K(d);N_SPINS(i),S_FLIGHT::S(A)
        • S(f);SBLOCK::S(A)
        • S(f);SBLOCK::S(D)
      • Refutation
        • S(f);
    • Try
      • R(G);CHECK,XS(i)
      • Refutation
        • B(k);CHECK,XR(G)
  • Actual
    • B(E);N_PINS(f)
    • Threat
      • B(E)
    • Vars
      • K(d);S_FLIGHT::S(A)
      • S(f);SBLOCK::S(A)
      • S(f);SBLOCK::S(D)
      • S(i);SBLOCK::R(F)
      • S(i);::R(G)+B(E),DCHECK,XS(i)
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