MESON Chess Problem Database

Problem Display
PID: 269267 (2R5/1KN5/B5RQ/p1kp1p2/p3qN2/1p6/1P5B/4r1b1 w - - 0 1)

Chicco, Adriano

1st Prize, Westfalische Landeszeitung, 1933

2R5/1KN5/B5RQ/p1kp1p2/p3qN2/1p6/1P5B/4r1b1

#2

9 + 9

15601 Albrecht-Leiss-Degener Collection 2023

SOLUTION

  • SOUND
  • Sets
    • 1...Qb4+
      • 2.Sb5#
    • 1...Qd4
      • 2.Scxd5#
    • 1...Bd4
      • 2.Scxd5#
    • 1...d4+
      • 2.Scd5#
  • Tries
    • 1.Sfe6+?
      • 1...Kb4
        • 2.Qd2#
      • 1...Qxe6!
  • Keys
    • 1.Rg4!
      • threat
        • 2.Qb6#
      • 1...Qb4+
        • 2.Sb5#
      • 1...d4+
        • 2.Scd5#
      • 1...Kb4
        • 2.Sd3#
      • 1...Kd4
        • 2.Sfe6#
      • 1...Qe6
        • 2.Sd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • Q(e);CHECK,SBLOCK::R(I)+S(H)
    • Q(e);SBLOCK::R(I)+S(H),XP(h)
    • B(b);SBLOCK::R(I)+S(H),XP(h)
    • P(h);CHECK,SBLOCK::R(I)+S(H)
  • Tries
    • Try
      • S(C);CHECK
      • Vars
        • K(g);S_CUTQ(e),S_FLIGHT::QAB(F)
      • Refutation
        • Q(e);XS(C)
  • Actual
    • R(E);
    • Threat
      • QAB1(F)
    • Vars
      • Q(e);CHECK,SBLOCK::R(I)+S(H)
      • P(h);CHECK,SBLOCK::R(I)+S(H)
      • K(g);N_GUARD,S_CUTQ(e),S_FLIGHT::S(C)
      • Q(e);N_GUARD::S(C)
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