MESON Chess Problem Database

Problem Display
PID: 81990 (1q1r4/1p4p1/8/1RB2N1R/4kp2/2brpN2/B2pK3/3n4 w - - 0 1)

Ahues, Herbert Siegfried Oskar

Sinfonie Scacchistiche, 1978

1q1r4/1p4p1/8/1RB2N1R/4kp2/2brpN2/B2pK3/3n4

#2

7 + 11

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Sg5+?
      • 1...Ke5
        • 2.Bd4#
      • 1...Kxf5!
    • 1.Bd6?
      • threat
        • 2.Sg5#
      • 1...Rd5
        • 2.Bxd5#
      • 1...Be5
        • 2.Rxe5#
      • 1...g5
        • 2.Sxg5#
      • 1...Bf6!
  • Keys
    • 1.Bd4!
      • threat
        • 2.Sg5#
      • 1...Qe5
        • 2.Rxe5#
      • 1...Rd5
        • 2.Bxd5#
      • 1...g5
        • 2.Sxg5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);CHECK
      • Vars
        • K(f);P-FLIGHT::R(D)+B(E),DCHECK
      • Refutation
        • K(f);S_FLIGHT,XS(F)
    • Try
      • B(E);
      • Threat
        • S(C)
      • Vars
        • R(d);N_GUARD::B(A),XR(d)
        • B(c);N_GUARD::R1(D),XB(c)
        • P(i);::S(C),XP(i)
      • Refutation
        • B(c);
  • Actual
    • B(E);
    • Threat
      • S(C)
    • Vars
      • Q(j);N_GUARD::R1(D),XQ(j)
      • R(k);N_GUARD::B(A),XR(k)
      • P(i);::S(C),XP(i)
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