MESON Chess Problem Database

Problem Display
PID: 69044 (B3b2B/3Rb3/3N1rn1/RKN1kPQ1/1pP3r1/2P2p2/p4q2/2n5 w - - 0 1)

Mlynka, Karol

1st Prize, Sachove umeni (Ceskoslovensky sach), 1998

B3b2B/3Rb3/3N1rn1/RKN1kPQ1/1pP3r1/2P2p2/p4q2/2n5

#2

11 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Rxc4
      • 2.Sxc4#
      • 2.fxg6#
    • 1...Rd4
      • 2.fxg6#
    • 1...Re4
      • 2.fxg6#
    • 1...Rh4
      • 2.fxg6#
    • 1...Bxd6
      • 2.Bxf6#
    • 1...Bf8
      • 2.Bxf6#
    • 1...Bf7
      • 2.Sxf7#
    • 1...Se2
      • 2.Sd3#
    • 1...Sb3
      • 2.Sd3#
    • 1...Sd3
      • 2.Sxd3#
  • Tries
    • 1.Kc6?
      • threat
        • 2.Sd3#
      • 1...Qxc5+
        • 2.Rxc5#
      • 1...Bxd7+
        • 2.Sxd7#
      • 1...Rxc4
        • 2.fxg6#
      • 1...Bxd6
        • 2.Bxf6#
      • 1...Sd3
        • 2.Sxd3#
      • 1...bxc3!
    • 1.Qe3+?
      • 1...Re4
        • 2.Qxe4#
      • 1...Qxe3!
  • Keys
    • 1.Kxb4!
      • threat
        • 2.Sd3#
      • 1...Qxc5+
        • 2.Rxc5#
      • 1...Qb2+
        • 2.Sb3#
      • 1...Rxc4+
        • 2.Sxc4#
      • 1...Sd3+
        • 2.Sxd3#
      • 1...Bxd6
        • 2.Bxf6#
      • 1...Bxd7
        • 2.Sf7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 7
  • Sets
    • R(f);N_GUARD::QAR(G)+P(F),XS(i)
    • B(j);N_GUARD,XS(H)::B(K),XR(h)
    • B(j);N_GUARD::B(K),XR(h)
    • B(k);N_GUARD,N_PINR(I)::S(H),XB(k)
    • S(a);N_GUARD::S(E)
    • S(a);N_GUARD::S(E),XS(a)
  • Tries
    • Try
      • K(D);P_SPINS(H),S_FLIGHT
      • Threat
        • R(C)+S(E),DCHECK
      • Vars
        • Q(c);CHECK,OGATE,P_SPINQ(c),XS(E)::R(C),XQ(c)
        • B(k);CHECK,XR(I)::R(C)+S(E),DCHECK,XB(k)
        • R(f);N_GUARD,N_PINS(H),P_PINS(E),XP(B)::QAR(G)+P(F),XS(i)
        • B(j);N_GUARD,XS(H)::B(K),XR(h)
        • S(a);::R(C)+S(E),DCHECK,XS(a)
      • Refutation
        • P(e);XP(A)
    • Try
      • Q(G);CHECK
      • Vars
        • R(f);N_GUARD,N_SPINR(h),P_SPINR(f)::QAR1(G),XR(f)
      • Refutation
        • Q(c);XQ(G)
  • Actual
    • K(D);N_SPINR(I),P-FLIGHT,P_SPINP(B),XP(e)
    • Threat
      • R(C)+S(E),DCHECK
    • Vars
      • Q(c);CHECK,OGATE,P_SPINQ(c),XS(E)::R(C),XQ(c)
      • Q(c);CHECK,N_GUARD::R(C)+S(E)
      • R(f);CHECK,XP(B)::S(H),XR(f)
      • S(a);CHECK::R(C)+S(E),DCHECK,XS(a)
      • B(j);N_GUARD,P_PINS(E),XS(H)::B(K),XR(h)
      • B(k);N_GUARD,XR(I)::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).