MESON Chess Problem Database

Problem Display
PID: 245951 (2Q5/1K3p2/2pN3R/p2k1pp1/1p3PP1/1p6/4pB2/1br1N3 w - - 0 1)

Kopyl, Valery Volodimirovich

Problemist Ukraini, 2019

2Q5/1K3p2/2pN3R/p2k1pp1/1p3PP1/1p6/4pB2/1br1N3

#2

8 + 11

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rd1
      • 2.Qxc6#
    • 1...Rxe1
      • 2.Qxc6#
    • 1...Rc2
      • 2.Qxf5#
    • 1...Ba2
      • 2.Qxf5#
    • 1...Bc2
      • 2.Qxc6#
    • 1...c5
      • 2.Qc6#
  • Tries
    • 1.Sc2?
      • threat
        • 2.Qxf5#
        • 2.Qxc6#
      • 1...Rxc2
        • 2.Qxf5#
      • 1...Bxc2
        • 2.Qxc6#
      • 1...fxg4
        • 2.Qf5#
        • 2.Qxc6#
      • 1...gxf4
        • 2.Qxf5#
      • 1...e1Q
        • 2.Qxc6#
      • 1...e1R
        • 2.Qxc6#
      • 1...c5
        • 2.Qxf5#
        • 2.Qxc5#
        • 2.Qc6#
      • 1...f6!
    • 1.Qh8?
      • threat
        • 2.Qd4#
        • 2.Qe5#
      • 1...gxf4
        • 2.Qd4#
      • 1...Rd1
        • 2.Qe5#
      • 1...Rc4
        • 2.Qe5#
      • 1...c5
        • 2.Qe5#
      • 1...f6!
  • Keys
    • 1.Sxf7!
      • threat
        • 2.Qe6#
      • 1...Kc4
        • 2.Qxc6#
      • 1...Ke4
        • 2.Qxf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 6
  • Sets
    • R(b);N_GUARD::QAB1(H),XP(j)
    • R(b);N_GUARD,XS(A)::QAB1(H),XP(j)
    • R(b);S_CUTB(a)::QAR2(H),XP(h)
    • B(a);N_GUARD::QAR2(H),XP(h)
    • B(a);S_CUTR(b)::QAB1(H),XP(j)
    • P(j);S_CUTR(b)::QAB1(H)
  • Tries
    • Try
      • S(A);
      • Threat
        • DUALS(2)
      • Vars
        • R(b);XS(A)::QAR2(H),XP(h)
        • B(a);XS(A)::QAB1(H),XP(j)
        • P(i);XP(C)::QAR2(H),XP(h)
        • P(c);::QAB1(H),XP(j)
      • Refutation
        • P(k);
    • Try
      • Q(H);
      • Threat
        • DUALS(2)
      • Vars
        • P(i);XP(C)::QAR1(H)
        • R(b);::QAR1(H)
        • P(j);::QAR1(H)
      • Refutation
        • P(k);
  • Actual
    • S(E);XP(k)
    • Threat
      • QAB1(H)
    • Vars
      • K(g);P_SPINP(j),S_FLIGHT::QAR2(H),XP(j)
      • K(g);S_FLIGHT::QAB1(H),XP(h)
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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).