MESON Chess Problem Database

Problem Display
PID: 205813 (2K2n2/4PQ2/4N1p1/b3p3/1RN1k1bR/1p4P1/2r1P2n/1B3rB1 w - - 0 1)

Dall'Ava, Aristide

L'Alfiere di Re, 1925

2K2n2/4PQ2/4N1p1/b3p3/1RN1k1bR/1p4P1/2r1P2n/1B3rB1

#2

11 + 10

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Rf5
      • 2.Sc5#
    • 1...Bc7
      • 2.Se3#
      • 2.Sb6#
    • 1...Sd7
      • 2.Sg5#
  • Tries
    • 1.Rxg4+?
      • 1...Rf4
        • 2.Sc5#
        • 2.Sg5#
      • 1...Sxg4
        • 2.Sc5#
        • 2.Sg5#
      • 1...Kd5!
  • Keys
    • 1.Rb5!
      • threat
        • 2.Rxe5#
      • 1...Rf5
        • 2.Sc5#
      • 1...Bc3
        • 2.Sd6#
      • 1...Bc7
        • 2.Sd2#
      • 1...Sf3
        • 2.Rxg4#
      • 1...Sd7
        • 2.Sg5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • R(a);::S(H)
    • S(j);::S(H)
  • Tries
    • Try
      • R(G);CHECK,XB(f)
      • Refutation
        • K(e);N_SPINR(b),S_FLIGHT
  • Actual
    • R(E);
    • Threat
      • R1(E),XP(h)
    • Vars
      • R(a);::S(H)
      • B(g);N_PINS(F),P_PINS(H)::S(F)
      • S(c);N_GUARD,S_CUTR(a)::R(G),XB(f)
      • S(j);::S(H)
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