MESON Chess Problem Database

Problem Display
PID: 190412 (7Q/2R5/8/3p3P/8/4pp2/3Np3/4k2K w - - 0 1)

Savenok, Aleksandr Antolovich

Heilbronner Stimme, 2001

(First published on Sat Apr 14 2001)

7Q/2R5/8/3p3P/8/4pp2/3Np3/4k2K

#2

5 + 5

16210 Problemschach-Jahrbuch (2001) 2002

SOLUTION

  • SOUND
  • Tries
    • 1.Rc1+?
      • 1...Kxd2
        • 2.Qc3#
      • 1...Kf2!
    • 1.Qa1+?
      • 1...Kf2
        • 2.Qg1#
      • 1...Kxd2!
  • Keys
    • 1.Qd4!
      • 1...Kd1
        • 2.Sxf3#
      • 1...Kf2
        • 2.Qh4#
      • 1...exd2
        • 2.Qg1#
      • 1...f2
        • 2.Rc1#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(D);CHECK
      • Vars
        • K(a);S_FLIGHT,XS(B)::QAB1(E)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(E);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT::QAB1(E)
      • Refutation
        • K(a);S_FLIGHT,XS(B)
  • Actual
    • Q(E);
    • Vars
      • K(a);P-FLIGHT::QAR(E)+S(B),XP(d)
      • K(a);P_SPINP(c),S_FLIGHT::QAB(E)
      • P(c);OGATE,SBLOCK,XS(B)::QAR2(E)
      • P(d);SBLOCK::R(D)
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