MESON Chess Problem Database

Problem Display
PID: 265061 (1B5Q/2NP3n/2R2r2/p1Np4/Rq1k1pK1/2p5/2PrPP2/8 w - - 0 1)

Cacciari, Europe

Il Due Mosse, 1952

1B5Q/2NP3n/2R2r2/p1Np4/Rq1k1pK1/2p5/2PrPP2/8

#2

11 + 9

15601 Albrecht-Leiss-Degener Collection 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Kc4
      • 2.S5e6#
    • 1...Ke5
      • 2.Sb5#
    • 1...Qc4
      • 2.Sb5#
      • 2.S7e6#
  • Tries
    • 1.Sb3+?
      • 1...Ke5
        • 2.Re6#
      • 1...Ke4!
    • 1.Rxb4+?
      • 1...Ke5
        • 2.Sb5#
        • 2.S7a6#
        • 2.S7e6#
        • 2.Sa8#
        • 2.Se8#
        • 2.Re6#
      • 1...axb4!
    • 1.Qxf6+?
      • 1...Kc4
        • 2.Sb3#
        • 2.Sd3#
        • 2.Se4#
        • 2.S5a6#
        • 2.S5e6#
        • 2.Sb7#
      • 1...Sxf6+!
    • 1.e3+?
      • 1...Kc4
        • 2.S5e6#
      • 1...Ke5
        • 2.Sb5#
        • 2.Re6#
      • 1...fxe3!
  • Keys
    • 1.d8Q!
      • threat
        • 2.Qxd5#
      • 1...Kc4
        • 2.S5e6#
      • 1...Ke5
        • 2.Sb5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(d);N_GUARD,N_SPINR(h),P-FLIGHT::R(G)+S(F)
    • K(d);N_GUARD,N_SPINQ(c),S_FLIGHT::B(J)+S(H)
  • Tries
    • Try
      • S(F);CHECK
      • Vars
        • K(d);N_GUARD,N_SPINQ(c),S_FLIGHT::R1(G)
      • Refutation
        • K(d);N_SPINR(h),P-FLIGHT
    • Try
      • R(D);CHECK,XQ(c)
      • Refutation
        • P(f);XR(D)
    • Try
      • Q(K);CHECK,XR(h)
      • Refutation
        • S(i);CHECK,XQ(K)
    • Try
      • P(B);CHECK
      • Vars
        • K(d);N_GUARD,N_SPINR(h),P-FLIGHT::R(G)+S(F)
      • Refutation
        • P(e);XP(B)
  • Actual
    • P(I);P_PINP(g)
    • Threat
      • QAR1(I),XP(g)
    • Vars
      • K(d);N_GUARD,N_SPINP(g),N_SPINR(h),P-FLIGHT::R(G)+S(F)
      • K(d);N_GUARD,N_SPINP(g),N_SPINQ(c),S_FLIGHT::B(J)+S(H)
HTML5 logo

Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).