MESON Chess Problem Database

Problem Display
PID: 159933 (7n/b3p1r1/3Pp1p1/NK1k4/7R/2p2P2/n5BQ/8 w - - 0 1)

Ahues, Herbert Siegfried Oskar

Freie Presse, 1968

7n/b3p1r1/3Pp1p1/NK1k4/7R/2p2P2/n5BQ/8

#2

7 + 9

15148 Sadier Collection 2017

SOLUTION

  • SOUND
  • Tries
    • 1.Sc4?
      • threat
        • 2.Qe5#
      • 1...exd6
        • 2.Qxd6#
      • 1...e5
        • 2.Qxe5#
      • 1...Bd4
        • 2.f4#
      • 1...Sf7!
  • Keys
    • 1.Sc6!
      • threat
        • 2.Qe5#
      • 1...exd6
        • 2.f4#
      • 1...e5
        • 2.Qxe5#
      • 1...Bd4
        • 2.Rxd4#
      • 1...Sf7
        • 2.Sxe7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(E);
      • Threat
        • QAR1(B)
      • Vars
        • P(g);OGATE,XP(G)::QAR1(B),XP(g)
        • P(d);::QAR1(B),XP(d)
        • B(f);SBLOCK::B(A)+P(C)
      • Refutation
        • S(i);
  • Actual
    • S(E);
    • Threat
      • QAR1(B)
    • Vars
      • P(g);SBLOCK,XP(G)::B(A)+P(C)
      • P(d);::QAR1(B),XP(d)
      • B(f);N_GUARD::R1(D),XB(f)
      • S(i);S_CUTR(h)::S(E),XP(g)
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