MESON Chess Problem Database

Problem Display
PID: 265360 (N3K3/2pR4/k7/8/bPrB4/2N5/1n4B1/R5Q1 w - - 0 1)

Castellari, Umberto

El Ajedrez Espanol, 1935

N3K3/2pR4/k7/8/bPrB4/2N5/1n4B1/R5Q1

#2

9 + 5

15601 Albrecht-Leiss-Degener Collection 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Sd1
      • 2.Rxa4#
    • 1...Sd3
      • 2.Rxa4#
    • 1...c6
      • 2.Ra7#
  • Keys
    • 1.Qf1!
      • threat
        • 2.Sxc7#
      • 1...Sd3
        • 2.Rxa4#
      • 1...c5
        • 2.Qf6#
      • 1...c6
        • 2.Ra7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • S(a);N_GUARD::R(A),XB(b)
    • P(e);N_PINR(G)::R1(G)
  • Actual
    • Q(B);P_PINR(c)
    • Threat
      • S(H),XP(e)
    • Vars
      • S(a);N_GUARD,N_SPINR(c)::R(A),XB(b)
      • P(e);N_GUARD::QAR(B)
      • P(e);N_PINR(G)::R1(G)
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