MESON Chess Problem Database

Problem Display
PID: 166386 (8/2p2p2/BP3K2/p2P1P2/P2kNR1R/1PN1rp2/3P3B/Q2b2b1 w - - 0 1)

Guida, Marco

4th HM., Olympic Ty., 2016

8/2p2p2/BP3K2/p2P1P2/P2kNR1R/1PN1rp2/3P3B/Q2b2b1

#2

14 + 8

4901 Best Problems 2017

SOLUTION

  • SOUND
  • Tries
    • 1.Sb5+?
      • 1...Kd3
        • 2.Sa3#
        • 2.Sd4#
      • 1...Kxd5!
    • 1.Bc4?
      • threat
        • 2.Se2#
        • 2.Sb5#
      • 1...Rxc3
        • 2.Qxc3#
      • 1...Rxe4
        • 2.Sxe4#
      • 1...Re2
        • 2.Sb1#
        • 2.Sxd1#
        • 2.Sa2#
        • 2.Sxe2#
        • 2.Sb5#
      • 1...Be2
        • 2.Sxe2#
        • 2.Sb5#
      • 1...Bxb3!
    • 1.Qa3?
      • threat
        • 2.Qc5#
      • 1...Rxc3
        • 2.Sxc3#
      • 1...Rxe4
        • 2.Rxe4#
      • 1...c5
        • 2.Qxc5#
      • 1...cxb6!
    • 1.dxe3+?
      • 1...Kxe3
        • 2.Sxd1#
      • 1...Bxe3!
  • Keys
    • 1.Rxf3!
      • threat
        • 2.Be5#
      • 1...Rxc3
        • 2.Rd3#
      • 1...Rxe4
        • 2.Bxg1#
      • 1...Bxh2
        • 2.dxe3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(E);CHECK
      • Refutation
        • K(e);P-FLIGHT,XP(J)
    • Try
      • B(L);
      • Threat
        • DUALS(2)
      • Vars
        • R(c);OGATE,P_SPINR(c),XS(E)::QAB1(A),XR(c)
        • R(c);P_SPINR(c),XS(G)::QAB(A)+S(E),XR(c)
      • Refutation
        • B(a);XP(D)
    • Try
      • Q(A);
      • Threat
        • QAB1(A)
      • Vars
        • R(c);XS(E)::R(H)+S(G),XR(c)
        • R(c);OGATE,P_SPINR(c),XS(G)::R1(H),XR(c)
        • P(g);::QAB1(A),XP(g)
      • Refutation
        • P(g);XP(M)
    • Try
      • P(B);CHECK,XR(c)
      • Vars
        • K(e);S_FLIGHT,XP(B)::S(E),XB(a)
      • Refutation
        • B(b);XP(B)
  • Actual
    • R(H);XP(d)
    • Threat
      • B(C)
    • Vars
      • R(c);OGATE,P_SPINR(c),XS(E)::R1(H)
      • R(c);OGATEB,P_SPINR(c),XS(G)::B(C),XB(b)
      • B(b);N_GUARD,XB(C)::P(B),XR(c)
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).