MESON Chess Problem Database

Problem Display
PID: 199278 (5b2/1n3R2/N1B5/2ppP3/4k3/4Pp2/N1bKn2B/Q7 w - - 0 1)

Ahues, Herbert Siegfried Oskar

Freie Presse, 2001

(First published on Fri Mar 23 2001)

5b2/1n3R2/N1B5/2ppP3/4k3/4Pp2/N1bKn2B/Q7

#2

9 + 8

16210 Problemschach-Jahrbuch (2001) 2002

SOLUTION

  • SOUND
  • Sets
    • 1...Bb1
      • 2.Qxb1#
    • 1...Sc1
      • 2.Sc3#
      • 2.Rf4#
    • 1...Sg1
      • 2.Sc3#
      • 2.Rf4#
    • 1...Sc3
      • 2.Sxc3#
    • 1...Sg3
      • 2.Rf4#
    • 1...Sd4
      • 2.Sc3#
    • 1...Sf4
      • 2.Rxf4#
    • 1...Sd6
      • 2.Sxc5#
    • 1...f2
      • 2.Qh1#
  • Tries
    • 1.Sc7?
      • threat
        • 2.Bxd5#
      • 1...Sc3
        • 2.Sxc3#
      • 1...Sf4
        • 2.Rxf4#
      • 1...Bb3!
    • 1.Qd4+?
      • 1...Sxd4
        • 2.Sc3#
      • 1...cxd4!
  • Keys
    • 1.Bd7!
      • threat
        • 2.Bf5#
      • 1...d4
        • 2.Bc6#
      • 1...Sg3
        • 2.Rf4#
      • 1...Sd4
        • 2.Sc3#
      • 1...Sd6
        • 2.Sxc5#
      • 1...f2
        • 2.Qh1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 3
  • Sets
    • B(a);OGATEB::QAB(A),XB(a)
    • S(b);N_GUARD::S(B),XS(b)
    • S(b);N_GUARD::R1(I)
    • S(b);N_GUARD::S(B)
    • S(b);N_GUARD::R1(I),XS(b)
    • S(g);N_GUARD,S_CUTB(h)::S(G),XP(e)
    • P(c);OGATEB::QAB(A)
  • Tries
    • Try
      • S(G);
      • Threat
        • B(H),XP(f)
      • Vars
        • S(b);N_GUARD::S(B),XS(b)
        • S(b);N_GUARD::R1(I),XS(b)
      • Refutation
        • B(a);
    • Try
      • Q(A);CHECK
      • Vars
        • S(b);XQ(A)::S(B)
      • Refutation
        • P(e);XQ(A)
  • Actual
    • B(H);N_PINP(f)
    • Threat
      • B(H)
    • Vars
      • P(f);OGATEB::B(H)
      • S(b);N_GUARD::R1(I)
      • S(b);N_GUARD::S(B)
      • S(g);N_GUARD,S_CUTB(h)::S(G),XP(e)
      • P(c);OGATEB::QAB(A)
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