MESON Chess Problem Database

Problem Display
PID: 276992 (7Q/qPPKB1n1/pPN5/N2kP3/R1p1pr2/n2P4/8/b3R2b w - - 0 1)

Svitek, Miroslav

Sachmatija, 2024

7Q/qPPKB1n1/pPN5/N2kP3/R1p1pr2/n2P4/8/b3R2b

#2

12 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Rf3
      • 2.dxe4#
    • 1...Sb1
      • 2.dxc4#
    • 1...Sc2
      • 2.dxc4#
    • 1...Sb5
      • 2.dxc4#
    • 1...Sf5
      • 2.Qg8#
    • 1...c3
      • 2.Rd4#
  • Tries
    • 1.Rxc4?
      • threat
        • 2.Rc5#
      • 1...Sxc4
        • 2.dxc4#
      • 1...Bd4
        • 2.Rxd4#
      • 1...Se6
        • 2.Sb4#
      • 1...Qxb6!
    • 1.Qg8+?
      • 1...Se6
        • 2.Qxe6#
      • 1...Rf7!
  • Keys
    • 1.Sxc4!
      • threat
        • 2.Se3#
      • 1...Qxb6
        • 2.Sxb6#
      • 1...Sxc4
        • 2.dxc4#
      • 1...Rf3
        • 2.dxe4#
      • 1...Bd4
        • 2.Sb4#
      • 1...Sc2
        • 2.Ra5#
      • 1...Sf5
        • 2.Qg8#
      • 1...e3
        • 2.Sxe3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 4
    • REMOVED MATES = 3
  • Sets
    • R(f);N_GUARD,S_CUTB(b)::P(B),XP(e)
    • S(c);N_GUARD::P(B),XP(d)
    • S(j);N_GUARD,S_CUTR(f)::QAB(L)
    • P(d);OGATE::R1(C)
  • Tries
    • Try
      • R(C);XP(d)
      • Threat
        • R1(C)
      • Vars
        • S(c);OGATE,XR(C)::P(B),XS(c)
        • B(a);N_GUARD::R1(C),XB(a)
        • S(j);::S(G)
      • Refutation
        • Q(i);XP(F)
    • Try
      • Q(L);CHECK
      • Vars
        • S(j);N_GUARD,P_SPINS(j)::QAB1(L),XS(j)
      • Refutation
        • R(f);P_PINB(K),P_SPINR(f)
  • Actual
    • S(D);XP(d)
    • Threat
      • S(D)
    • Vars
      • Q(i);XP(F)::S(D),XQ(i)
      • S(c);OGATE,XS(D)::P(B),XS(c)
      • R(f);N_GUARD,S_CUTB(b)::P(B),XP(e)
      • B(a);SBLOCK::S(G)
      • S(c);N_GUARD::R(C)
      • S(j);N_GUARD,S_CUTR(f)::QAB(L)
      • P(e);::S(D),XP(e)
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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).