MESON Chess Problem Database

Problem Display
PID: 199264 (3K4/6p1/n2k4/3P1R2/n2B1p2/4P3/3Q4/6b1 w - - 0 1)

Zipf, Volker

Freie Presse, 2001

(First published on Fri Jan 19 2001)

3K4/6p1/n2k4/3P1R2/n2B1p2/4P3/3Q4/6b1

#2

6 + 6

16210 Problemschach-Jahrbuch (2001) 2002

SOLUTION

  • SOUND
  • Sets
    • 1...S4c5
      • 2.Be5#
    • 1...S6c5
      • 2.Be5#
  • Tries
    • 1.Qb4+?
      • 1...S4c5
        • 2.Qb6#
      • 1...S6c5
        • 2.Qb8#
      • 1...Sxb4!
    • 1.Qg2?
      • threat
        • 2.Qg6#
      • 1...S4c5
        • 2.Be5#
      • 1...S6c5
        • 2.Be5#
      • 1...g5
        • 2.Rf6#
      • 1...g6
        • 2.Rf6#
        • 2.Qxg6#
      • 1...Sc7!
  • Keys
    • 1.Qa5!
      • threat
        • 2.Be5#
      • 1...S4c5
        • 2.Qb6#
      • 1...S6c5
        • 2.Qc7#

This is a version of 133235

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • S(b);SBLOCK::B(C)
    • S(d);SBLOCK::B(C)
  • Tries
    • Try
      • Q(A);CHECK
      • Vars
        • S(b);N_GUARD,P_SPINS(b)::QAR2(A)
        • S(d);N_GUARD,P_SPINS(d)::QAB(A)
      • Refutation
        • S(d);XQ(A)
    • Try
      • Q(A);
      • Threat
        • QAR(A)
      • Vars
        • S(b);SBLOCK::B(C)
        • S(d);SBLOCK::B(C)
        • P(f);N_GUARD::R(E)
      • Refutation
        • S(d);
  • Actual
    • Q(A);
    • Threat
      • B(C)
    • Vars
      • S(b);N_GUARD::QAR2(A)
      • S(d);N_GUARD::QAB1(A)
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