MESON Chess Problem Database

Problem Display
PID: 73875 (K7/8/3pN3/1R6/2BBk2n/1R6/2n1p3/8 w - - 0 1)

Hoffmann, Fritz

Stuttgarter Nachrichten, 1993

K7/8/3pN3/1R6/2BBk2n/1R6/2n1p3/8

#2

6 + 5

6113 Problemschach-Jahrbuch (1993) 1994
5454 Near Snap 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Sa1
      • 2.Re3#
    • 1...Se1
      • 2.Re3#
    • 1...Sa3
      • 2.Re3#
    • 1...Se3
      • 2.Rxe3#
    • 1...Sb4
      • 2.Re3#
    • 1...Sf3
      • 2.Bd3#
    • 1...Sf5
      • 2.Bd5#
  • Tries
    • 1.Rg3?
      • threat
        • 2.Bd3#
      • 1...Se1
        • 2.Re3#
      • 1...Se3
        • 2.Rxe3#
      • 1...Sb4
        • 2.Re3#
      • 1...Sf3
        • 2.Rg4#
      • 1...e1S!
    • 1.Rh5?
      • threat
        • 2.Bd5#
      • 1...Se3
        • 2.Rxe3#
      • 1...Sb4
        • 2.Re3#
      • 1...d5
        • 2.Bxd5#
        • 2.Re5#
      • 1...Sf5!
  • Keys
    • 1.Rg5!
      • threat
        • 2.Bd5#
      • 1...Se3
        • 2.Rxe3#
      • 1...Sb4
        • 2.Re3#
      • 1...Sf5
        • 2.Rg4#
      • 1...d5
        • 2.Bxd5#
        • 2.Re5#

Anticipated by 96459(1985)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 0
    • REMOVED MATES = 4
  • Sets
    • S(a);N_GUARD::R1(A)
    • S(a);N_GUARD::R1(A),XS(a)
    • S(d);SBLOCK::B(B)
  • Tries
    • Try
      • R(A);
      • Threat
        • B(B)
      • Vars
        • S(a);N_GUARD::R1(A)
        • S(a);N_GUARD::R1(A),XS(a)
        • S(d);SBLOCK::R(A)
      • Refutation
        • P(b);
    • Try
      • R(D);
      • Threat
        • B(B)
      • Vars
        • S(a);N_GUARD::R1(A),XS(a)
        • S(a);N_GUARD::R1(A)
      • Refutation
        • S(d);
  • Actual
    • R(D);
    • Threat
      • B(B)
    • Vars
      • S(a);N_GUARD::R1(A),XS(a)
      • S(a);N_GUARD::R1(A)
      • S(d);SBLOCK::R(D)
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