MESON Chess Problem Database

Problem Display
PID: 155225 (4nN1K/8/2P2p1k/6pp/Q5R1/8/8/8 w - - 0 1)

Savenok, Aleksandr Antolovich

Stuttgarter Nachrichten, 2000

4nN1K/8/2P2p1k/6pp/Q5R1/8/8/8

#2

5 + 5

15391 Problemschach-Jahrbuch (2000) 2001

SOLUTION

  • SOUND
  • Tries
    • 1.Qa7?
      • threat
        • 2.Qh7#
      • 1...Sg7
        • 2.Qxg7#
      • 1...Sc7!
  • Keys
    • 1.Qf4!
      • 1...gxf4
        • 2.Rg6#
      • 1...hxg4
        • 2.Qh2#
      • 1...h4
        • 2.Rxh4#
      • 1...Sd6
        • 2.Qxf6#
      • 1...Sc7
        • 2.Qxf6#
      • 1...Sg7
        • 2.Qxf6#
      • 1...f5
        • 2.Qxg5#

There are these versions: 190415

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);
      • Threat
        • QAR1(A)
      • Vars
        • S(e);N_GUARD::QAB1(A),XS(e)
      • Refutation
        • S(e);
  • Actual
    • Q(A);P_PINP(a)
    • Vars
      • P(a);N_SPINP(a),OGATE,XQ(A)::R1(B)
      • P(b);OGATEB,XR(B)::QAR(A)
      • P(b);OGATEB::R(B),XP(b)
      • S(e);N_GUARD::QAR2(A),XP(c)
      • P(c);N_GUARD::QAB1(A),XP(a)
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