MESON Chess Problem Database

Problem Display
PID: 265213 (8/7q/8/8/3r2P1/3NkpP1/n4N2/1Q2K1B1 w - - 0 1)

Carra, Arturo

L'Italia Scacchistica, 1931

8/7q/8/8/3r2P1/3NkpP1/n4N2/1Q2K1B1

#2

7 + 5

15601 Albrecht-Leiss-Degener Collection 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Qe4
      • 2.Sd1#
    • 1...Re4
      • 2.Sd1#
    • 1...Sc1
      • 2.Qxc1#
    • 1...Sc3
      • 2.Qc1#
    • 1...Sb4
      • 2.Qc1#
  • Keys
    • 1.Sc5!
      • threat
        • 2.Sd1#
      • 1...Rd1+
        • 2.Sxd1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 5
  • Sets
    • Q(e);SBLOCK::B(C)+S(D),DCHECK
    • R(d);SBLOCK::B(C)+S(D),DCHECK
    • S(a);N_GUARD::QAB(A),XS(a)
    • S(a);N_GUARD::QAB(A)
  • Actual
    • S(E);
    • Threat
      • B(C)+S(D),DCHECK
    • Vars
      • R(d);CHECK::B(C)+S(D),DCHECK,XR(d)
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