MESON Chess Problem Database

Problem Display
PID: 75050 (3R3B/4p3/2QqP1p1/R1bN2n1/P3k1p1/p3p1P1/B1P5/2K3N1 w - - 0 1)

Chicco, Adriano

Bristol Times and Mirror, 1931

3R3B/4p3/2QqP1p1/R1bN2n1/P3k1p1/p3p1P1/B1P5/2K3N1

#2

12 + 9

6169 Dal classico agli albori del moderno compositori scacchisti 2007

SOLUTION

  • SOUND
  • Sets
    • 1...Kf5
      • 2.Sxe3#
    • 1...Qf4
      • 2.Sxe7#
    • 1...Qb8
      • 2.Sxe7#
    • 1...Qxd5
      • 2.Qxd5#
    • 1...Bb4
      • 2.Sc3#
    • 1...Bd4
      • 2.Sc3#
      • 2.Sf6#
    • 1...Bb6
      • 2.Sc3#
    • 1...Ba7
      • 2.Sc3#
  • Tries
    • 1.Sxe7+?
      • 1...Qd5
        • 2.Bxd5#
        • 2.Qxd5#
      • 1...Qxc6!
    • 1.Bc4?
      • threat
        • 2.Bd3#
      • 1...Kf5
        • 2.Sxe3#
      • 1...Qe5!
    • 1.Qxd6?
      • threat
        • 2.Qf4#
        • 2.Qe5#
      • 1...Kf5
        • 2.Qe5#
      • 1...Bxd6
        • 2.Sc3#
      • 1...Sxe6
        • 2.Qe5#
        • 2.Qxe6#
      • 1...Bd4
        • 2.Qf4#
      • 1...Sf3
        • 2.Qf4#
      • 1...Sh3
        • 2.Qe5#
      • 1...Sf7
        • 2.Qf4#
      • 1...exd6!
  • Keys
    • 1.c3!
      • threat
        • 2.Bb1#
      • 1...Kd3
        • 2.Sf4#
      • 1...Kf5
        • 2.Sxe3#
      • 1...Qb8
        • 2.Sxe7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 5
  • Sets
    • K(c);S_FLIGHT::S(H),XP(b)
    • Q(g);N_GUARD::QAB(I)+S(H),XP(i)
    • Q(g);OGATE,P_SPINQ(g),XS(H)::QAB1(I),XQ(g)
    • B(e);::QAB(I)+S(H),DCHECK
  • Tries
    • Try
      • S(H);CHECK,XP(i)
      • Refutation
        • Q(g);XQ(I)
    • Try
      • B(C);
      • Threat
        • B(C)
      • Vars
        • K(c);S_FLIGHT::S(H),XP(b)
      • Refutation
        • Q(g);
    • Try
      • Q(I);XQ(g)
      • Threat
        • DUALS(2)
      • Vars
        • K(c);S_FLIGHT::QAR1(I)
        • B(e);XQ(I)::S(H)
        • B(e);::QAR1(I)
        • S(f);::QAR1(I)
      • Refutation
        • P(i);XQ(I)
  • Actual
    • P(D);
    • Threat
      • B(C)
    • Vars
      • K(c);S_FLIGHT::S(H)
      • K(c);S_FLIGHT::S(H),XP(b)
      • Q(g);N_GUARD::QAB(I)+S(H),XP(i)
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