MESON Chess Problem Database

Problem Display
PID: 201530 (4qn1N/1pBp1P1n/4R1p1/4N1P1/5kBP/3P4/1K3P2/8 w - - 0 1)

Somma, Francesco

L'Alfiere di Re, 1922

4qn1N/1pBp1P1n/4R1p1/4N1P1/5kBP/3P4/1K3P2/8

#2

11 + 7

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Sxg5
      • 2.Rf6#
    • 1...Sf6
      • 2.Rxf6#
    • 1...Sxe6
      • 2.Shxg6#
  • Keys
    • 1.Rd6!
      • threat
        • 2.Rd4#
      • 1...Kxe5
        • 2.Rxd7#
      • 1...Sxg5
        • 2.Rf6#
      • 1...Sf6
        • 2.Rxf6#
      • 1...Se6
        • 2.Shxg6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • S(e);N_GUARD,XP(G)::R(H)
    • S(e);N_GUARD::R(H),XS(e)
    • S(g);N_GUARD,XR(H)::S(K),XP(b)
  • Actual
    • R(H);
    • Threat
      • R(H)
    • Vars
      • K(a);OGATEB,S_FLIGHT,XS(F)::B(I)+R(H),XP(d)
      • S(e);N_GUARD,XP(G)::R(H)
      • S(e);N_GUARD::R(H),XS(e)
      • S(g);N_GUARD::S(K),XP(b)
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