MESON Chess Problem Database

Problem Display
PID: 75049 (3B1b2/Nnrp4/R3qN1R/2kp4/1p2pP2/8/1P1Q4/4K3 w - - 0 1)

Chicco, Adriano

2nd HM., Il Problema, 1931

3B1b2/Nnrp4/R3qN1R/2kp4/1p2pP2/8/1P1Q4/4K3

#2

9 + 9

6169 Dal classico agli albori del moderno compositori scacchisti 2007

SOLUTION

  • SOUND
  • Sets
    • 1...Qh3
      • 2.Qxd5#
    • 1...Qg4
      • 2.Qxd5#
    • 1...Qb6
      • 2.Qxd5#
    • 1...Qe7
      • 2.Qxd5#
    • 1...Qe8
      • 2.Qxd5#
    • 1...b3
      • 2.Qc3#
  • Tries
    • 1.Qe3+?
      • 1...Kc4
        • 2.b3#
      • 1...d4!
  • Keys
    • 1.Ra4!
      • threat
        • 2.Qxb4#
      • 1...Kc4
        • 2.Qc3#
      • 1...Kb6
        • 2.Sxd7#
      • 1...Kd6
        • 2.Sxe4#
      • 1...Qb6
        • 2.Qxd5#
      • 1...b3
        • 2.Qb4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 4
  • Sets
    • Q(e);N_GUARD::QAR1(C),XP(d)
    • P(a);N_GUARD::QAR2(C)
  • Tries
    • Try
      • Q(C);CHECK
      • Vars
        • K(c);P-FLIGHT::P(B)
      • Refutation
        • P(d);P_SPINP(d)
  • Actual
    • R(E);
    • Threat
      • QAB1(C),XP(a)
    • Vars
      • K(c);P-FLIGHT,P_SPINP(a)::QAR1(C)
      • K(c);P_SPINR(g),S_FLIGHT::S(F),XP(h)
      • K(c);P_SPINP(d),S_FLIGHT::S(F),XP(b)
      • Q(e);N_GUARD,SBLOCK::QAR1(C),XP(d)
      • P(a);::QAB1(C)
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