MESON Chess Problem Database

Problem Display
PID: 158099 (8/7B/8/2Kb4/k7/1p6/pQ6/8 w - - 0 1)

Andreev, Aleksandr Grigorevich

200 Shakhmatni Zadachi, 1983

8/7B/8/2Kb4/k7/1p6/pQ6/8

#2

3 + 4

15148 Sadier Collection 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Ka5
      • 2.Qa3#
    • 1...a1Q
      • 2.Qxa1#
    • 1...a1S
      • 2.Qxa1#
    • 1...a1B
      • 2.Qxa1#
    • 1...a1R
      • 2.Qxa1#
  • Keys
    • 1.Bc2!
      • threat
        • 2.Qxa2#
      • 1...Ka5
        • 2.Qa3#
      • 1...bxc2
        • 2.Qb4#
      • 1...a1Q
        • 2.Qxa1#
      • 1...a1S
        • 2.Qxa1#
        • 2.Qa2#
      • 1...a1B
        • 2.Qxa1#
        • 2.Qa2#
      • 1...a1R
        • 2.Qxa1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 2
  • Sets
    • K(c);P-FLIGHT::QAR2(A)
    • P(a);OGATEB::QAR(A),XQ(a)
    • P(a);OGATEB::QAR(A),XS(a)
    • P(a);OGATEB::QAR(A),XB(a)
    • P(a);OGATEB::QAR(A),XR(a)
  • Actual
    • B(C);P_PINP(b)
    • Threat
      • QAR2(A),XP(a)
    • Vars
      • K(c);N_SPINP(b),P-FLIGHT::QAR2(A)
      • P(b);N_SPINP(b),OGATE,XB(C)::QAR1(A)
      • P(a);OGATEB::QAR(A),XQ(a)
      • P(a);OGATEB::QAR(A),XR(a)
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