MESON Chess Problem Database

Problem Display
PID: 131900 (K7/1p1B4/8/3N4/R2bkBn1/2pN4/4P3/3n4 w - - 0 1)

Ferber, Eugene

Deutsche Schachzeitung, 1914

K7/1p1B4/8/3N4/R2bkBn1/2pN4/4P3/3n4

#2

7 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Sb2
      • 2.Sxc3#
    • 1...Sdf2
      • 2.Sxc3#
    • 1...Sde3
      • 2.Sxc3#
    • 1...Sgf2
      • 2.Sf6#
    • 1...Sh2
      • 2.Sf6#
    • 1...Sge3
      • 2.Sf6#
    • 1...Se5
      • 2.Sf6#
    • 1...Sf6
      • 2.Sxf6#
    • 1...Sh6
      • 2.Sf6#
  • Tries
    • 1.Be5?
      • threat
        • 2.Rxd4#
      • 1...Kxd5
        • 2.Rxd4#
      • 1...Sxe5!
  • Keys
    • 1.Be3!
      • threat
        • 2.Rxd4#
      • 1...Kxd5
        • 2.Rxd4#
      • 1...Sdxe3
        • 2.Sxc3#
      • 1...Sgxe3
        • 2.Sf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 7
  • Sets
    • S(a);N_GUARD::S(E),XP(b)
    • S(e);N_GUARD::S(E)
    • S(e);N_GUARD::S(E),XS(e)
  • Tries
    • Try
      • B(D);
      • Threat
        • R1(C),XB(c)
      • Vars
        • K(d);N_SPINB(c),S_FLIGHT,XS(E)::R1(C),XB(c)
      • Refutation
        • S(e);XB(D)
  • Actual
    • B(D);
    • Threat
      • R1(C),XB(c)
    • Vars
      • K(d);N_SPINB(c),S_FLIGHT,XS(E)::R1(C),XB(c)
      • S(a);N_GUARD,SBLOCK,XB(D)::S(E),XP(b)
      • S(e);N_GUARD,SBLOCK,XB(D)::S(E)
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