MESON Chess Problem Database

Problem Display
PID: 190925 (Q7/8/8/2N5/2pk1P2/B5p1/8/4Kn2 w - - 0 1)

Savenok, Aleksandr Antolovich

Neue Osnabrucker Zeitung, 2001

(First published on Sat May 12 2001)

Q7/8/8/2N5/2pk1P2/B5p1/8/4Kn2

#2

5 + 4

16210 Problemschach-Jahrbuch (2001) 2002

SOLUTION

  • SOUND
  • Sets
    • 1...Ke3
      • 2.Qe4#
    • 1...c3
      • 2.Qe4#
  • Tries
    • 1.Bb4?
      • threat
        • 2.Qe4#
      • 1...Ke3
        • 2.Qe4#
      • 1...Sd2!
    • 1.Qf3?
      • threat
        • 2.Se6#
      • 1...c3
        • 2.Qe4#
        • 2.Qd3#
      • 1...Se3!
    • 1.Qe8?
      • threat
        • 2.Qe5#
      • 1...Kd5
        • 2.Qd7#
      • 1...c3
        • 2.Qe4#
      • 1...Kc3!
  • Keys
    • 1.Qg2!
      • 1...Kc3
        • 2.Qb2#
      • 1...Ke3
        • 2.Qe4#
      • 1...Sd2
        • 2.Qxd2#
      • 1...Sh2
        • 2.Qd2#
      • 1...Se3
        • 2.Qd2#
      • 1...c3
        • 2.Qe4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • K(d);S_FLIGHT::QAR1(E)
    • P(c);SBLOCK::QAR1(E)
  • Tries
    • Try
      • B(B);
      • Threat
        • QAR1(E)
      • Vars
        • K(d);S_FLIGHT::QAR1(E)
      • Refutation
        • S(a);
    • Try
      • Q(E);
      • Threat
        • S(D)
      • Refutation
        • S(a);
    • Try
      • Q(E);
      • Threat
        • QAB1(E)
      • Vars
        • K(d);P-FLIGHT::QAR2(E)
        • P(c);SBLOCK::QAR1(E)
      • Refutation
        • K(d);S_FLIGHT
  • Actual
    • Q(E);
    • Vars
      • K(d);S_FLIGHT::QAB1(E)
      • K(d);S_FLIGHT::QAR1(E)
      • S(a);N_GUARD::QAR2(E),XS(a)
      • S(a);N_GUARD::QAR2(E)
      • P(c);SBLOCK::QAR1(E)
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