MESON Chess Problem Database

Problem Display
PID: 267060 (2r1bR1K/1q1Bnp2/r2p2pp/p1Qn4/1p1N1k1B/7P/3P4/b3R1N1 w - - 0 1)

Castellari, Umberto

El Ajedrez Espanol, 1935

2r1bR1K/1q1Bnp2/r2p2pp/p1Qn4/1p1N1k1B/7P/3P4/b3R1N1

#2

10 + 14

15601 Albrecht-Leiss-Degener Collection 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Ra7
      • 2.Qxd6#
    • 1...Raa8
      • 2.Qxd6#
    • 1...Bxd4+
      • 2.Qxd4#
    • 1...Sc3
      • 2.Se6#
    • 1...Sb6
      • 2.Qxd6#
  • Keys
    • 1.d3!
      • threat
        • 2.Re4#
      • 1...Bxd4+
        • 2.Qxd4#
      • 1...Sc3
        • 2.Se6#
      • 1...Se3
        • 2.Se2#
      • 1...Sb6
        • 2.Qxd6#
      • 1...Sf6
        • 2.Sde2#
      • 1...Sc7
        • 2.Qc1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • R(f);N_GUARD::QAB(G),XP(g)
    • B(a);CHECK,OGATE,XS(E)::QAR2(G),XB(a)
    • S(e);N_PINS(E)::S(E)
    • S(e);S_CUTR(f)::QAB(G),XP(g)
  • Actual
    • P(C);
    • Threat
      • R1(A)
    • Vars
      • B(a);CHECK,OGATE,XS(E)::QAR2(G),XB(a)
      • S(e);N_PINS(E)::S(E)
      • S(e);SBLOCK::S(B)
      • S(e);S_CUTR(f)::QAB(G),XP(g)
      • S(e);N_PINS(E),N_SPINP(l)::S(E)
      • S(e);N_GUARD,S_CUTR(m)::QAB(G)
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