MESON Chess Problem Database

Problem Display
PID: 192676 (8/8/8/3p4/1P1b4/pk1p1Q2/N1N5/1K6 w - - 0 1)

Savenok, Aleksandr Antolovich

Sachsische Zeitung, 2001

(First published on Sat Jun 23 2001)

8/8/8/3p4/1P1b4/pk1p1Q2/N1N5/1K6

#2

5 + 5

16210 Problemschach-Jahrbuch (2001) 2002

SOLUTION

  • SOUND
  • Tries
    • 1.Sc1+?
      • 1...Kc3
        • 2.Qxd3#
      • 1...Kc4
        • 2.Qxd3#
      • 1...Ka4!
    • 1.Sxd4+?
      • 1...Ka4
        • 2.Qd1#
      • 1...Kc4!
  • Keys
    • 1.Qd1!
      • threat
        • 2.Se3#
      • 1...dxc2+
        • 2.Qxc2#
      • 1...Ka4
        • 2.Sxd4#
      • 1...Kc4
        • 2.Sxa3#
      • 1...Be3
        • 2.Sxe3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(B);CHECK
      • Vars
        • K(b);P-FLIGHT::QAR1(D),XP(c)
        • K(b);N_SPINP(c),S_FLIGHT::QAB1(D),XP(c)
      • Refutation
        • K(b);N_SPINP(c),S_FLIGHT
    • Try
      • S(C);CHECK,XB(d)
      • Vars
        • K(b);N_SPINP(c),S_FLIGHT::QAB(D)
      • Refutation
        • K(b);N_SPINP(c),S_FLIGHT
  • Actual
    • Q(D);N_PINP(c)
    • Threat
      • QAB(D)+S(C)
    • Vars
      • P(c);CHECK,OGATE,P_SPINP(c),XS(C)::QAB1(D),XP(c)
      • K(b);S_FLIGHT::QAB(D)+S(C),XB(d)
      • K(b);S_FLIGHT::S(C),XP(a)
      • B(d);::QAB(D)+S(C),XB(d)
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