MESON Chess Problem Database

Problem Display
PID: 172412 (3B4/3K4/kr6/1N5Q/8/8/8/5B2 w - - 0 1)

Andreev, Aleksandr Grigorevich

Kuban segodniya, 1997

3B4/3K4/kr6/1N5Q/8/8/8/5B2

#2

5 + 2

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Keys
    • 1.Qc5!
      • threat
        • 2.Qxb6#
      • 1...Rd6+
        • 2.Sxd6#
      • 1...Rb7+
        • 2.Sc7#
      • 1...Ka5
        • 2.Sc3#
        • 2.Qa3#
      • 1...Kb7
        • 2.Qc8#
      • 1...Rxb5
        • 2.Qb6#
      • 1...Rc6
        • 2.Sd6#
        • 2.Qa7#
        • 2.Qxc6#
      • 1...Re6
        • 2.Qa7#
        • 2.Qc8#
      • 1...Rf6
        • 2.Qa7#
        • 2.Qc8#
      • 1...Rg6
        • 2.Sd6#
        • 2.Qa7#
        • 2.Qc8#
      • 1...Rh6
        • 2.Sd6#
        • 2.Qa7#
        • 2.Qc8#
      • 1...Rb8
        • 2.Qa7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Actual
    • Q(C);
    • Threat
      • QAR1(C),XR(b)
    • Vars
      • R(b);CHECK,N_GUARD::B(A)+S(B),XR(b)
      • R(b);CHECK,SBLOCK::B(A)+S(B),DCHECK
      • K(a);S_FLIGHT::QAB1(C)
      • R(b);P_SPINR(b),XS(B)::QAR1(C)
      • R(b);OGATE::QAR1(C)
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