MESON Chess Problem Database

Problem Display
PID: 16104 (3q2n1/1Bp5/5RN1/6b1/3k4/2R1r1Q1/2P2PPK/B3r2n w - - 0 1)

Slesarenko, Anatoly Vasilevich

1st Prize, Pula 2D TT, 2000

3q2n1/1Bp5/5RN1/6b1/3k4/2R1r1Q1/2P2PPK/B3r2n

#2

10 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Re2
      • 2.Qd3#
    • 1...Rxc3
      • 2.Qxc3#
    • 1...Rd3
      • 2.Qxd3#
    • 1...Re4
      • 2.Qd3#
    • 1...Re5
      • 2.Qd3#
    • 1...Re6
      • 2.Qd3#
    • 1...Re7
      • 2.Qd3#
    • 1...Re8
      • 2.Qd3#
  • Tries
    • 1.Se5?
      • threat
        • 2.Rc4#
      • 1...Rxc3
        • 2.Qxc3#
      • 1...Rxe5
        • 2.Qd3#
      • 1...c6!
    • 1.Rcc6+?
      • 1...Ke4
        • 2.Rc4#
        • 2.Rce6#
        • 2.Qe5#
      • 1...Kd5
        • 2.Rxc7#
      • 1...Rc3
        • 2.Qd3#
      • 1...Rxa1!
    • 1.Rxc7+?
      • 1...Rc3
        • 2.Bxc3#
        • 2.Qxc3#
        • 2.Qd3#
      • 1...Rxa1!
    • 1.Rf4+?
      • 1...Re4
        • 2.Qd3#
      • 1...Bxf4!
    • 1.fxe3+?
      • 1...Bxe3
        • 2.Qe5#
      • 1...Rxe3!
  • Keys
    • 1.Rfc6!
      • threat
        • 2.R6c4#
      • 1...Ke4
        • 2.Qe5#
      • 1...Kd5
        • 2.Rd6#
      • 1...Rxc3
        • 2.Qd3#
      • 1...Qd5
        • 2.R3c4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 7
  • Sets
    • R(c);OGATE::QAR1(G)
    • R(c);OGATE,P_SPINR(c),XR(F)::QAB1(G),XR(c)
    • R(c);OGATE::QAR1(G),XR(c)
  • Tries
    • Try
      • S(I);
      • Threat
        • B(A)+R(F),DCHECK
      • Vars
        • R(c);OGATE,P_SPINR(c),XR(F)::QAB1(G),XR(c)
        • R(c);OGATE,SBLOCK,XS(I)::QAR1(G)
      • Refutation
        • P(f);
    • Try
      • R(F);CHECK
      • Vars
        • K(d);P-FLIGHT::B(J)+R(F),XP(f)
        • R(c);OGATE,P_SPINR(c)::QAR1(G)
      • Refutation
        • R(a);XB(A)
    • Try
      • R(F);CHECK,XP(f)
      • Refutation
        • R(a);XB(A)
    • Try
      • R(H);CHECK
      • Vars
        • R(c);OGATE,P_SPINR(c)::QAR1(G)
      • Refutation
        • B(e);P_PINQ(G),XR(H)
    • Try
      • P(C);CHECK,XR(c)
      • Vars
        • B(e);XP(C)::QAB1(G)
      • Refutation
        • R(a);XP(C)
  • Actual
    • R(H);
    • Threat
      • R1(H)
    • Vars
      • K(d);P-FLIGHT::QAR1(G)
      • K(d);P-FLIGHT::B(J)+R(H),DCHECK
      • R(c);OGATE,P_SPINR(c),XR(F)::QAR1(G)
      • Q(g);SBLOCK::B(A)+R(F),DCHECK
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Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).