MESON Chess Problem Database

Problem Display
PID: 157493 (1K4N1/3p4/3k1b2/2p1NPB1/5RP1/1b6/8/7B w - - 0 1)

Formanek, Bedrich

Praca, 1949

1K4N1/3p4/3k1b2/2p1NPB1/5RP1/1b6/8/7B

#2

8 + 5

15148 Sadier Collection 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Bd1
      • 2.Sc4#
      • 2.Sf7#
    • 1...Bc2
      • 2.Sc4#
      • 2.Sf7#
    • 1...Ba4
      • 2.Sc4#
      • 2.Sf7#
    • 1...Bc4
      • 2.Sxc4#
    • 1...Bf7
      • 2.Sxf7#
    • 1...Bxe5
      • 2.Be7#
  • Tries
    • 1.Rd4+?
      • 1...Kxe5
        • 2.Bxf6#
      • 1...Bd5
        • 2.Rxd5#
      • 1...cxd4!
  • Keys
    • 1.Rc4!
      • threat
        • 2.Sf7#
      • 1...Kxe5
        • 2.Bf4#
      • 1...Bxc4
        • 2.Sxc4#
      • 1...Bxe5
        • 2.Be7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • B(a);N_GUARD::S(D),XB(a)
    • B(d);OGATE,SBLOCK,XS(D)::B(F)
  • Tries
    • Try
      • R(B);CHECK
      • Vars
        • K(c);S_FLIGHT,XS(D)::B(F),XB(d)
        • B(a);N_GUARD,P_SPINB(a)::R1(B),XB(a)
      • Refutation
        • P(b);XR(B)
  • Actual
    • R(B);
    • Threat
      • S(D)
    • Vars
      • K(c);OGATEB,S_FLIGHT,XS(D)::B(F)
      • B(a);XR(B)::S(D),XB(a)
      • B(d);OGATE,SBLOCK,XS(D)::B(F)
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