MESON Chess Problem Database

Problem Display
PID: 104512 (6K1/2PR2n1/p1P3N1/q6p/BNkPQ3/P6r/1RPP1b2/1n3bB1 w - - 0 1)

Nesic, Milivoj S

Yugoslav Championship, 1990

6K1/2PR2n1/p1P3N1/q6p/BNkPQ3/P6r/1RPP1b2/1n3bB1

#2

14 + 9

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qxb4
      • 2.Se5#
      • 2.Rxb4#
      • 2.Qd5#
    • 1...Qb6
      • 2.Se5#
      • 2.Qd5#
    • 1...Qxc7
      • 2.Qd5#
    • 1...Qxa4
      • 2.Qd5#
    • 1...Qd5+
      • 2.Qxd5#
    • 1...Qe5
      • 2.Sxe5#
    • 1...Rb3
      • 2.cxb3#
    • 1...Be1
      • 2.d5#
    • 1...Bg3
      • 2.d5#
    • 1...Bxd4
      • 2.Qxd4#
    • 1...Bh4
      • 2.d5#
  • Tries
    • 1.Rd5?
      • threat
        • 2.Se5#
      • 1...Qxd5+
        • 2.Qxd5#
      • 1...Qxc7
        • 2.Rc5#
      • 1...Bg3
        • 2.Bb3#
      • 1...Sxd2!
    • 1.Qe2+?
      • 1...Rd3
        • 2.cxd3#
      • 1...Bxe2!
    • 1.Qe6+?
      • 1...Qd5
        • 2.Qxd5#
      • 1...Sxe6!
    • 1.d5+?
      • 1...Bd4
        • 2.Qxd4#
      • 1...Kc5!
  • Keys
    • 1.Sd5!
      • threat
        • 2.Se5#
      • 1...Qxd5+
        • 2.Qxd5#
      • 1...Qxc7
        • 2.Rb4#
      • 1...Bxd4
        • 2.Qxd4#
      • 1...Bg3
        • 2.Se3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 0
    • REMOVED MATES = 5
  • Sets
    • Q(f);N_GUARD,XP(L)::QAB1(I)
    • Q(f);N_GUARD,XB(F)::QAB1(I)
    • Q(f);CHECK,N_GUARD::QAB1(I),XQ(f)
    • Q(f);N_GUARD::S(K),XQ(f)
    • R(d);OGATE::P(C),XR(d)
    • B(c);N_GUARD::QAR(I)+P(H)
    • B(c);OGATE,P_SPINB(c),XP(H)::QAR1(I),XB(c)
  • Tries
    • Try
      • R(M);
      • Threat
        • S(K)
      • Vars
        • Q(f);CHECK,OGATE,XR(M)::QAB1(I),XQ(f)
        • Q(f);N_GUARD,XP(L)::R1(M)
        • B(c);S_CUTR(d)::B(F)
      • Refutation
        • S(a);XP(D)
    • Try
      • Q(I);CHECK
      • Vars
        • R(d);OGATE,P_SPINR(d)::P(C),XR(d)
      • Refutation
        • B(b);XQ(I)
    • Try
      • Q(I);CHECK
      • Vars
        • Q(f);N_GUARD,P_PINQ(I),P_SPINQ(f)::QAB1(I),XQ(f)
      • Refutation
        • S(i);XQ(I)
    • Try
      • P(H);CHECK
      • Vars
        • B(c);N_GUARD,P_SPINB(c)::QAR1(I),XB(c)
      • Refutation
        • K(e);P-FLIGHT,P_SPINB(c)
  • Actual
    • S(G);
    • Threat
      • S(K)
    • Vars
      • Q(f);CHECK,OGATE,XS(G)::QAB1(I),XQ(f)
      • Q(f);N_GUARD,XP(L)::R1(B)
      • B(c);OGATE,P_SPINB(c),XP(H)::QAR1(I),XB(c)
      • B(c);N_GUARD,S_CUTR(d)::S(G)
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).