MESON Chess Problem Database

Problem Display
PID: 56449 (K7/Np2Bp1b/5p2/1BR5/1rpknb1R/5Q2/4P3/8 w - - 0 1)

Brogi, Giuseppe

4th Prize=, L'Italia Scacchistica, 1920-1921

K7/Np2Bp1b/5p2/1BR5/1rpknb1R/5Q2/4P3/8

#2

8 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Rxb5
      • 2.Sxb5#
    • 1...Be3
      • 2.Qxf6#
    • 1...Sd2
      • 2.Rd5#
    • 1...Sf2
      • 2.Rd5#
    • 1...Sg3
      • 2.Rd5#
    • 1...Sxc5
      • 2.Bxf6#
    • 1...Sg5
      • 2.Rd5#
    • 1...Sd6
      • 2.Rd5#
    • 1...c3
      • 2.Qd3#
    • 1...b6
      • 2.Sc6#
  • Keys
    • 1.Bc6!
      • threat
        • 2.Rd5#
      • 1...Sxc5
        • 2.Bxf6#
      • 1...bxc6
        • 2.Sxc6#
      • 1...Be3
        • 2.Qxf6#
      • 1...Rb5
        • 2.Sxb5#
      • 1...Sc3
        • 2.Qf2#
      • 1...c3
        • 2.Qd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 6
  • Sets
    • R(a);XB(D)::S(F),XR(a)
    • B(e);OGATE,P_SPINS(d),SBLOCK::QAB(B),XP(f)
    • S(d);P_SPINB(e)::R1(E)
    • S(d);N_GUARD,P_SPINB(e),SBLOCK,XR(E)::B(G),XP(f)
    • P(b);N_GUARD::QAR1(B)
    • P(g);N_GUARD::S(F)
  • Actual
    • B(D);
    • Threat
      • R1(E)
    • Vars
      • S(d);N_GUARD,P_SPINB(e),SBLOCK,XR(E)::B(G),XP(f)
      • P(g);XB(D)::S(F),XP(g)
      • B(e);OGATE,P_SPINS(d),SBLOCK::QAB(B),XP(f)
      • R(a);N_GUARD::S(F),XR(a)
      • S(d);N_GUARD,P_SPINB(e),SBLOCK::QAB(B)
      • P(b);N_GUARD::QAR1(B)
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