MESON Chess Problem Database

Problem Display
PID: 172446 (8/K7/8/k7/1Rp5/2B5/q1N5/8 w - - 0 1)

Andreev, Aleksandr Grigorevich

Kuban segodniya, 1997

8/K7/8/k7/1Rp5/2B5/q1N5/8

#2

4 + 3

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Keys
    • 1.Sd4!
      • threat
        • 2.Sc6#
        • 2.Rxc4#
      • 1...Qb1
        • 2.Sc6#
      • 1...Qb3
        • 2.Sc6#
      • 1...Qa1
        • 2.Sc6#
      • 1...Qb2
        • 2.Sc6#
      • 1...Qc2
        • 2.Sc6#
      • 1...Qd2
        • 2.Sc6#
      • 1...Qf2
        • 2.Rxc4#
      • 1...Qg2
        • 2.Rxc4#
      • 1...Qa3
        • 2.Sc6#
      • 1...Qa4
        • 2.Rb5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 10
    • REMOVED MATES = 0
  • Sets
  • Actual
    • S(A);
    • Threat
      • DUALS(2)
    • Vars
      • Q(a);::S(A)
      • Q(a);P_PINS(A)::B(B)+R(C),XP(b)
      • Q(a);::B(B)+R(C),XP(b)
      • Q(a);SBLOCK::B(B)+R(C),DCHECK
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