MESON Chess Problem Database

Problem Display
PID: 41186 (8/5Np1/K1pp2B1/3p3p/R1nk3P/3Pp3/1P6/3Q4 w - - 0 1)

Strzala, Kazimierz

3rd Prize, Szachy, 1984

8/5Np1/K1pp2B1/3p3p/R1nk3P/3Pp3/1P6/3Q4

#2

8 + 8

3748 FIDE Album (1983-1985) 1992

SOLUTION

  • SOUND
  • Sets
    • 1...Kc5
      • 2.d4#
    • 1...e2
      • 2.Qg1#
    • 1...c5
      • 2.dxc4#
  • Tries
    • 1.Ka7?
      • 1...e2
        • 2.Qg1#
      • 1...c5
        • 2.dxc4#
      • 1...Kc5!
    • 1.Kb7?
      • 1...e2
        • 2.Qg1#
      • 1...c5
        • 2.dxc4#
      • 1...Kc5!
    • 1.Rb4?
      • 1...e2
        • 2.Qg1#
      • 1...c5
        • 2.dxc4#
      • 1...Kc5!
    • 1.Qf3?
      • 1...c5
        • 2.Qf4#
      • 1...e2
        • 2.Qf2#
      • 1...Kc5!
    • 1.Qg4+?
      • 1...Kc5
        • 2.b4#
        • 2.d4#
      • 1...hxg4!
    • 1.Qxh5?
      • 1...Kc5
        • 2.Rxc4#
      • 1...c5
        • 2.Qg4#
      • 1...e2!
    • 1.Qc1?
      • 1...c5
        • 2.Qc3#
      • 1...e2
        • 2.Qg1#
      • 1...Kc5!
    • 1.Qe1?
      • 1...e2
        • 2.Qf2#
        • 2.Qg1#
      • 1...c5
        • 2.Qc3#
      • 1...Kc5!
    • 1.Qf1?
      • 1...e2
        • 2.Qg1#
        • 2.Qf2#
      • 1...c5
        • 2.Qf4#
      • 1...Kc5!
  • Keys
    • 1.Qa1!
      • 1...Kc5
        • 2.b4#
      • 1...e2
        • 2.Qg1#
      • 1...c5
        • 2.b3#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 2
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(c);N_SPINS(b),OGATE,S_FLIGHT::P(C)
    • P(a);OGATEB::QAB(A)
    • P(f);SBLOCK::QAR(A)+P(C),XS(b)
  • Tries
    • Try
      • K(F);P-FLIGHT
      • Vars
        • P(a);OGATEB::QAB(A)
        • P(f);SBLOCK::QAR(A)+P(C),XS(b)
      • Refutation
        • K(c);N_SPINS(b),S_FLIGHT
    • Try
      • K(F);S_FLIGHT
      • Vars
        • P(a);OGATEB::QAB(A)
        • P(f);SBLOCK::QAR(A)+P(C),XS(b)
      • Refutation
        • K(c);N_SPINS(b),S_FLIGHT
    • Try
      • R(D);
      • Vars
        • P(a);OGATEB::QAB(A)
        • P(f);SBLOCK::QAR(A)+P(C),XS(b)
      • Refutation
        • K(c);N_SPINS(b),S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • P(f);SBLOCK::QAR2(A)
        • P(a);OGATEB::QAB(A)
      • Refutation
        • K(c);N_SPINS(b),S_FLIGHT
    • Try
      • Q(A);CHECK
      • Refutation
        • P(e);XQ(A)
    • Try
      • Q(A);XP(e)
      • Vars
        • K(c);N_SPINS(b),P_SPINP(d),S_FLIGHT::R1(D),XS(b)
        • P(f);SBLOCK::QAR(A)
      • Refutation
        • P(a);
    • Try
      • Q(A);
      • Vars
        • P(f);SBLOCK::QAB1(A)
        • P(a);OGATEB::QAB(A)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • P(f);SBLOCK::QAB1(A)
      • Refutation
        • K(c);N_SPINS(b),S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • P(f);SBLOCK::QAR2(A)
      • Refutation
        • K(c);N_SPINS(b),S_FLIGHT
  • Actual
    • Q(A);
    • Vars
      • K(c);N_SPINS(b),S_FLIGHT::P(B)
      • P(a);OGATEB::QAB(A)
      • P(f);SBLOCK::QAB(A)+P(B)
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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).