MESON Chess Problem Database

Problem Display
PID: 238817 (3Q4/2p2RB1/1N2P1p1/2p1rb2/1PP1k1p1/1K4P1/4Pn2/3n1N2 w - - 0 1)

Janevski, Zivko

Rochade Europa, 2012

3Q4/2p2RB1/1N2P1p1/2p1rb2/1PP1k1p1/1K4P1/4Pn2/3n1N2

#2

11 + 9

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rd5
      • 2.Qxd5#
    • 1...Rxe6
      • 2.Qd5#
    • 1...Bxe6
      • 2.Rf4#
    • 1...Se3
      • 2.Sd2#
    • 1...Sh1
      • 2.Qd3#
    • 1...Sd3
      • 2.Qxd3#
    • 1...Sh3
      • 2.Qd3#
  • Tries
    • 1.Sd7?
      • threat
        • 2.Sf6#
      • 1...Kd4
        • 2.Sxc5#
      • 1...Rxe6
        • 2.Sxc5#
      • 1...Bxe6
        • 2.Rf4#
      • 1...Rd5!
    • 1.Bh6?
      • threat
        • 2.Sd2#
      • 1...Rxe6
        • 2.Qd5#
      • 1...Rd5
        • 2.Qxd5#
      • 1...g5!
    • 1.Qxc7?
      • threat
        • 2.Qxe5#
      • 1...Kd4
        • 2.Qxe5#
      • 1...Rxe6
        • 2.Qf4#
      • 1...Rd5
        • 2.Qf4#
      • 1...Sd3!
    • 1.Qd2?
      • threat
        • 2.Qf4#
      • 1...Sd3
        • 2.Qxd3#
      • 1...Se3
        • 2.Qxe3#
      • 1...Sh3
        • 2.Qd3#
      • 1...g5!
    • 1.Qd6?
      • threat
        • 2.Qxe5#
      • 1...Rxe6
        • 2.Qf4#
        • 2.Qd5#
      • 1...Rd5
        • 2.Qf4#
        • 2.Qxd5#
      • 1...Sd3
        • 2.Qxd3#
      • 1...cxd6!
    • 1.Qa8+?
      • 1...Kd4
        • 2.Rd7#
        • 2.Qd5#
      • 1...Rd5
        • 2.Qxd5#
      • 1...c6!
  • Keys
    • 1.Sd5!
      • threat
        • 2.Sf6#
      • 1...Kd4
        • 2.Sc3#
      • 1...Rxd5
        • 2.Qxd5#
      • 1...Rxe6
        • 2.Sd2#
      • 1...Bxe6
        • 2.Rf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 4
  • Sets
    • R(f);N_GUARD::QAB1(K),XR(f)
    • R(f);N_GUARD,XP(H)::QAB1(K)
    • B(g);OGATE,P_PINP(F),XP(H)::R1(I)
    • S(a);SBLOCK::S(A)
    • S(b);N_GUARD::QAB1(K)
    • S(b);N_GUARD::QAB1(K),XS(b)
  • Tries
    • Try
      • S(G);
      • Threat
        • S(G)
      • Vars
        • K(c);P-FLIGHT,P_SPINR(f)::QAR(K)+S(G),XP(e)
        • R(f);N_GUARD,XP(H)::S(G),XP(e)
        • B(g);OGATE,P_PINP(F),XP(H)::R1(I)
      • Refutation
        • R(f);
    • Try
      • B(J);
      • Threat
        • S(A)
      • Vars
        • R(f);N_GUARD,XP(H)::QAB1(K)
        • R(f);N_GUARD::QAB1(K),XR(f)
      • Refutation
        • P(h);
    • Try
      • Q(K);XP(i)
      • Threat
        • QAR1(K),XR(f)
      • Vars
        • K(c);P-FLIGHT,P_SPINR(f)::QAB1(K),XR(f)
        • R(f);OGATE,XP(H)::QAR1(K)
        • R(f);OGATE::QAR1(K)
      • Refutation
        • S(b);
    • Try
      • Q(K);
      • Threat
        • QAR1(K)
      • Vars
        • S(b);N_GUARD::QAB1(K),XS(b)
        • S(a);N_GUARD::QAR1(K),XS(a)
        • S(b);N_GUARD::QAB1(K)
      • Refutation
        • P(h);
    • Try
      • Q(K);
      • Threat
        • QAR1(K),XR(f)
      • Vars
        • S(b);N_GUARD::QAB1(K),XS(b)
      • Refutation
        • P(i);XQ(K)
    • Try
      • Q(K);CHECK
      • Vars
        • R(f);N_GUARD,P_SPINR(f)::QAB1(K),XR(f)
      • Refutation
        • P(i);P_SPINP(i)
  • Actual
    • S(G);
    • Threat
      • S(G)
    • Vars
      • K(c);P-FLIGHT,P_SPINR(f)::QAR(K)+S(G)
      • R(f);OGATE,XS(G)::QAB1(K),XR(f)
      • R(f);XP(H)::S(A)
      • B(g);OGATE,XP(H)::R1(I)
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).