MESON Chess Problem Database

Problem Display
PID: 51885 (k1Kn4/p5Q1/3b4/3N4/8/8/8/8 w - - 0 1)

Aliovsadzade, Rauf Gadzhiaga ogli

Lincoln, Robert A

StrateGems, 2004

k1Kn4/p5Q1/3b4/3N4/8/8/8/8

#2

3 + 4

SOLUTION

  • SOUND
  • Sets
    • 1...Ba3
      • 2.Sc7#
    • 1...Bb4
      • 2.Sc7#
    • 1...Bc5
      • 2.Sc7#
    • 1...Bc7
      • 2.Sxc7#
    • 1...Be7
      • 2.Sc7#
    • 1...Bf8
      • 2.Sc7#
    • 1...Sc6
      • 2.Qb7#
    • 1...Se6
      • 2.Qb7#
    • 1...Sb7
      • 2.Qxb7#
    • 1...a5
      • 2.Sb6#
    • 1...a6
      • 2.Sb6#
  • Keys
    • 1.Qa1!
      • threat
        • 2.Sb6#
      • 1...a5
        • 2.Qxa5#
      • 1...a6
        • 2.Qxa6#
      • 1...Ba3
        • 2.Sc7#
      • 1...Bc5
        • 2.Sc7#
      • 1...Bc7
        • 2.Sxc7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 0
    • REMOVED MATES = 6
  • Sets
    • B(a);N_GUARD::S(A)
    • B(a);N_GUARD::S(A),XB(a)
    • S(d);N_GUARD::QAB1(B)
    • S(d);N_GUARD::QAB1(B),XS(d)
    • P(b);N_GUARD::S(A)
  • Actual
    • Q(B);P_PINP(b)
    • Threat
      • S(A)
    • Vars
      • P(b);OGATEB::QAR(B),XP(b)
      • P(b);OGATEB::QAR2(B),XP(b)
      • B(a);N_GUARD,N_SPINP(b)::S(A)
      • B(a);N_GUARD::S(A)
      • B(a);N_GUARD::S(A),XB(a)
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