MESON Chess Problem Database

Problem Display
PID: 187146 (n5BB/1Q1p4/p1r1Pr2/2p2R2/P1k3N1/1pP4R/4N3/4K2b w - - 0 1)

Ahues, Herbert Siegfried Oskar

stern, 2001

(First published on Thu Jan 18 2001)

n5BB/1Q1p4/p1r1Pr2/2p2R2/P1k3N1/1pP4R/4N3/4K2b

#2

11 + 9

16210 Problemschach-Jahrbuch (2001) 2002

SOLUTION

  • SOUND
  • Sets
    • 1...Rb6
      • 2.Se5#
    • 1...Rd6
      • 2.Se5#
    • 1...Rcxe6
      • 2.Se5#
      • 2.Qxa6#
    • 1...Rc7
      • 2.Se5#
      • 2.Qxa6#
    • 1...Rc8
      • 2.Se5#
      • 2.Qxa6#
    • 1...Bd5
      • 2.Se5#
    • 1...Sb6
      • 2.Qxa6#
    • 1...a5
      • 2.Qb5#
    • 1...d5
      • 2.Se5#
  • Keys
    • 1.Sc1!
      • threat
        • 2.Qxb3#
      • 1...Rcxe6+
        • 2.Se5#
      • 1...Rfxe6+
        • 2.Se3#
      • 1...Rb6
        • 2.Se5#
      • 1...Sb6
        • 2.Qxa6#
      • 1...b2
        • 2.Qb3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 4
  • Sets
    • R(f);::S(F)
    • B(a);SBLOCK::S(F)
    • S(i);S_CUTR(f)::QAB(I),XP(e)
    • P(e);N_GUARD::QAB1(I)
    • P(h);SBLOCK::S(F)
  • Actual
    • S(B);
    • Threat
      • QAB1(I),XP(b)
    • Vars
      • R(f);CHECK,P_SPINR(f),XP(H)::S(F)
      • R(g);CHECK,P_SPINR(g),XP(H)::S(F)
      • R(f);::S(F)
      • S(i);S_CUTR(f)::QAB(I),XP(e)
      • P(b);::QAB1(I)
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