MESON Chess Problem Database

Problem Display
PID: 95693 (3n4/1pNnBB2/1Pk1q2Q/P1bR4/3p4/1K1N4/8/8 w - - 0 1)

Rossi, Sisto

L'Italia Scacchistica, 1984

3n4/1pNnBB2/1Pk1q2Q/P1bR4/3p4/1K1N4/8/8

#2

9 + 7

14744 Nuova Antologia dei Problemisti Italiani 1992
6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Bb4
      • 2.Sxb4#
    • 1...Se5
      • 2.Sxe5#
    • 1...Sb8
      • 2.Se5#
    • 1...Sf8
      • 2.Se5#
  • Tries
    • 1.Qxe6+?
      • 1...Bd6
        • 2.Sb4#
        • 2.Rxd6#
        • 2.Qxd6#
      • 1...Sxe6!
  • Keys
    • 1.Qc1!
      • threat
        • 2.Sb4#
      • 1...Qxd5+
        • 2.Bxd5#
      • 1...Sxb6
        • 2.Qxc5#
      • 1...Qh3
        • 2.Rd6#
      • 1...Qe1
        • 2.Rd6#
      • 1...Qe3
        • 2.Rd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 4
  • Sets
    • B(b);N_GUARD::S(B),XB(b)
    • S(f);N_GUARD::S(B),XS(f)
    • S(f);N_GUARD::S(B)
  • Tries
    • Try
      • Q(F);CHECK,N_SPINR(D),XQ(d)
      • Refutation
        • S(g);XQ(F)
  • Actual
    • Q(F);N_PINQ(d),P_PINB(b)
    • Threat
      • S(B)
    • Vars
      • Q(d);CHECK,OGATE,XR(D)::B(I),XQ(d)
      • S(f);N_GUARD,XP(E)::QAR1(F),XB(b)
      • Q(d);N_PINR(D),P_PINS(B)::R1(D)
      • Q(d);N_PINR(D)::R1(D)
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