MESON Chess Problem Database

Problem Display
PID: 141712 (qB6/3RN3/1p2p1B1/1P1b4/1Ppk4/1P3Q2/R2pr1n1/b4N1K w - - 0 1)

Dragoescu, Radu

Probleemblad, 1977

qB6/3RN3/1p2p1B1/1P1b4/1Ppk4/1P3Q2/R2pr1n1/b4N1K

#2

11 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Qc6
      • 2.Sxc6#
    • 1...Qxa2
      • 2.Sc6#
    • 1...Qa3
      • 2.Sc6#
    • 1...Qa4
      • 2.Sc6#
    • 1...Qa5
      • 2.Sc6#
    • 1...Qa6
      • 2.Sc6#
    • 1...Qa7
      • 2.Sc6#
    • 1...Qxb8
      • 2.Sc6#
    • 1...Re1
      • 2.Rxd2#
    • 1...Re4
      • 2.Rxd2#
    • 1...Re5
      • 2.Rxd2#
    • 1...cxb3
      • 2.Qd3#
    • 1...c3
      • 2.Qd3#
    • 1...e5
      • 2.Sf5#
  • Tries
    • 1.Be5+?
      • 1...Rxe5
        • 2.Rxd2#
      • 1...Kxe5!
    • 1.Rxd5+?
      • 1...exd5
        • 2.Sf5#
      • 1...Qxd5!
    • 1.Qf6+?
      • 1...Re5
        • 2.Bxe5#
        • 2.Qxe5#
      • 1...e5!
  • Keys
    • 1.Rc2!
      • threat
        • 2.Rxc4#
      • 1...Qxb8
        • 2.Sc6#
      • 1...cxb3
        • 2.Qd3#
      • 1...Qc6
        • 2.Sxc6#
      • 1...Bc3
        • 2.Qxc3#
      • 1...Se3
        • 2.Qe4#
      • 1...c3
        • 2.Qd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 10
  • Sets
    • Q(j);N_GUARD::S(J),XQ(j)
    • Q(j);N_GUARD,XR(C)::S(J)
    • Q(j);N_GUARD::S(J)
    • Q(j);N_GUARD,XB(K)::S(J)
    • R(c);N_GUARD,P_PINS(A)::R(C),XP(b)
    • R(c);N_GUARD::R(C),XP(b)
    • P(e);N_GUARD,XP(D)::QAR1(E)
    • P(e);N_GUARD::QAR1(E)
    • P(i);N_GUARD::S(J)
  • Tries
    • Try
      • B(K);CHECK
      • Vars
        • R(c);SBLOCK,XB(K)::R(C),XP(b)
      • Refutation
        • K(f);N_SPINB(g),S_FLIGHT,XB(K)
    • Try
      • R(I);CHECK,XB(g)
      • Vars
        • P(i);XR(I)::S(J)
      • Refutation
        • Q(j);XR(I)
    • Try
      • Q(E);CHECK
      • Refutation
        • P(i);P_SPINP(i)
  • Actual
    • R(C);
    • Threat
      • R1(C),XP(e)
    • Vars
      • Q(j);N_GUARD,XB(K)::S(J)
      • P(e);N_GUARD,XP(D)::QAR1(E)
      • Q(j);N_GUARD::S(J),XQ(j)
      • B(a);N_GUARD::QAB1(E),XB(a)
      • S(d);P_PINQ(E),S_CUTR(c)::QAR1(E)
      • P(e);N_GUARD::QAR1(E)
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).