MESON Chess Problem Database

Problem Display
PID: 274080 (n2K4/4N3/3kp3/6Q1/8/7N/8/8 w - - 0 1)

Zimmer, Eligiusz

StrateGems, 2001

n2K4/4N3/3kp3/6Q1/8/7N/8/8

#2

4 + 3

15601 Albrecht-Leiss-Degener Collection 2024

SOLUTION

  • SOUND
  • Tries
    • 1.Qd2+?
      • 1...Ke5
        • 2.Qf4#
      • 1...Kc5!
    • 1.Qa5?
      • 1...e5
        • 2.Qd5#
      • 1...Sc7
        • 2.Qxc7#
      • 1...Sb6!
    • 1.Qb5?
      • threat
        • 2.Sc8#
      • 1...e5
        • 2.Qc6#
        • 2.Qd5#
      • 1...Sb6!
  • Keys
    • 1.Qc1!
      • 1...Ke5
        • 2.Qf4#
      • 1...Sb6
        • 2.Qc7#
      • 1...Sc7
        • 2.Qxc7#
      • 1...e5
        • 2.Qc6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);N_GUARD,S_CUTP(b),S_FLIGHT::QAB1(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(B);
      • Vars
        • P(b);N_GUARD::QAR1(B)
        • S(c);N_GUARD::QAB1(B),XS(c)
      • Refutation
        • S(c);
    • Try
      • Q(B);
      • Threat
        • S(C)
      • Refutation
        • S(c);
  • Actual
    • Q(B);
    • Vars
      • K(a);N_GUARD,S_CUTP(b),S_FLIGHT::QAB1(B)
      • S(c);N_GUARD::QAB1(B)
      • S(c);N_GUARD::QAB1(B),XS(c)
      • P(b);SBLOCK::QAR1(B)
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