MESON Chess Problem Database

Problem Display
PID: 255035 (8/BnbN4/B1p1p3/R1p3pN/4k1p1/K1Pp1b1R/5Q2/8 w - - 0 1)

Borovik, Boris V

Sinfonie Scacchistiche, 1982

8/BnbN4/B1p1p3/R1p3pN/4k1p1/K1Pp1b1R/5Q2/8

#2

9 + 10

15601 Albrecht-Leiss-Degener Collection 2021
3713 Snap 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kd5
      • 2.Qd4#
    • 1...Kf5
      • 2.Bxd3#
    • 1...Bd1
      • 2.Shf6#
    • 1...Bh1
      • 2.Shf6#
    • 1...Be2
      • 2.Shf6#
    • 1...Bg2
      • 2.Shf6#
    • 1...c4
      • 2.Sdf6#
      • 2.Qe3#
      • 2.Qd4#
  • Tries
    • 1.Sg3+?
      • 1...Kf4
        • 2.Qd2#
      • 1...Kd5
        • 2.Qd4#
      • 1...Bxg3!
    • 1.Bxd3+?
      • 1...Kd5
        • 2.Qd4#
      • 1...Kxd3!
  • Keys
    • 1.Qf1!
      • threat
        • 2.Qxd3#
      • 1...Ke3
        • 2.Qe1#
      • 1...Kd5
        • 2.Qxd3#
      • 1...Kf5
        • 2.Bxd3#
      • 1...Be2
        • 2.Shf6#
      • 1...d2
        • 2.Qd3#
      • 1...c4
        • 2.Sdf6#

Anticipated by 173829(1982)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 3
  • Sets
    • K(c);N_GUARD,P_SPINP(e),S_FLIGHT::QAR1(A)
    • K(c);N_GUARD,P_SPINB(b),P_SPINP(e),S_FLIGHT::B(G),XP(a)
    • B(b);::S(F)
  • Tries
    • Try
      • S(F);CHECK
      • Vars
        • K(c);N_GUARD,P-FLIGHT,P_SPINB(b),S_CUTB(j)::QAB(A)
        • K(c);P_SPINP(e),S_FLIGHT::QAR1(A)
      • Refutation
        • B(j);XS(F)
    • Try
      • B(G);CHECK,XP(a)
      • Vars
        • K(c);P_SPINP(e),S_FLIGHT::QAR1(A)
      • Refutation
        • K(c);P_SPINB(b),S_FLIGHT,XB(G)
  • Actual
    • Q(A);
    • Threat
      • QAB1(A),XP(a)
    • Vars
      • K(c);N_GUARD,P-FLIGHT,P_SPINB(b),P_SPINP(e)::QAR2(A)
      • K(c);P_SPINP(e),S_FLIGHT::QAR2(A),XP(a)
      • K(c);N_GUARD,P_SPINB(b),P_SPINP(e),S_FLIGHT::B(G),XP(a)
      • B(b);::S(F)
      • P(a);::QAB1(A)
      • P(e);::S(I)
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