MESON Chess Problem Database

Problem Display
PID: 172386 (8/8/2Q5/p7/1N6/k2p4/8/1K6 w - - 0 1)

Andreev, Aleksandr Grigorevich

Kuban segodniya, 1997

8/8/2Q5/p7/1N6/k2p4/8/1K6

#2

3 + 3

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...a4
      • 2.Qc3#
  • Tries
    • 1.Sxd3?
      • 1...a4
        • 2.Qc3#
      • 1...Kb3!
  • Keys
    • 1.Qc4!
      • 1...Ka4
        • 2.Sc2#
      • 1...axb4
        • 2.Qa2#
      • 1...d2
        • 2.Sc2#
      • 1...a4
        • 2.Qc3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • P(c);SBLOCK::QAR2(C)
  • Tries
    • Try
      • S(B);XP(b)
      • Vars
        • P(c);SBLOCK::QAR2(C)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • Q(C);
    • Vars
      • K(a);P-FLIGHT::QAR(C)+S(B)
      • P(c);SBLOCK,XS(B)::QAR1(C)
      • P(b);N_GUARD::S(B)
      • P(c);SBLOCK::QAR2(C)
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