MESON Chess Problem Database

Problem Display
PID: 16187 (8/1B2pqnN/2p1R1pK/2P1Nk2/6p1/6P1/4Pn2/b2b1R1Q w - - 0 1)

Mazul, Waldemar

StrateGems, 2000

8/1B2pqnN/2p1R1pK/2P1Nk2/6p1/6P1/4Pn2/b2b1R1Q

#2

10 + 10

SOLUTION

  • SOUND
  • Tries
    • 1.Sc4?
      • threat
        • 2.Qe4#
      • 1...Kxe6
        • 2.Bc8#
      • 1...Qxe6
        • 2.Rxf2#
      • 1...Sxe6
        • 2.e4#
      • 1...Be5
        • 2.Rxe5#
      • 1...Bc2!
    • 1.Sxc6?
      • threat
        • 2.Qe4#
      • 1...Kxe6
        • 2.Bc8#
      • 1...Qxe6
        • 2.Rxf2#
      • 1...Sxe6
        • 2.e4#
      • 1...Be5
        • 2.Rxe5#
      • 1...Bc2!
    • 1.Qe4+?
      • 1...Kxe6
        • 2.Bc8#
      • 1...Kxe4!
    • 1.Qxc6?
      • threat
        • 2.Rxf2#
        • 2.e4#
      • 1...Qxe6
        • 2.Qe4#
      • 1...Bxe5
        • 2.e4#
      • 1...Sxe6
        • 2.Qe4#
      • 1...Bc2
        • 2.Rxf2#
      • 1...Bd4
        • 2.e4#
      • 1...Sh5
        • 2.e4#
      • 1...Bxe2!
  • Keys
    • 1.Sd3!
      • threat
        • 2.Qe4#
      • 1...Kxe6
        • 2.Bc8#
      • 1...Qxe6
        • 2.Rxf2#
      • 1...Sxe6
        • 2.e4#
      • 1...Be5
        • 2.Rxe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(F);
      • Threat
        • QAB1(B)
      • Vars
        • K(e);N_SPINS(c),OGATEB,S_FLIGHT,XR(G)::B(I)
        • Q(i);SBLOCK,XR(G)::R(A),XS(c)
        • S(j);SBLOCK,XR(G)::P(C)
        • B(a);N_GUARD::R1(G),XB(a)
      • Refutation
        • B(b);
    • Try
      • S(F);XP(f)
      • Threat
        • QAB1(B)
      • Vars
        • K(e);N_SPINS(c),OGATEB,S_FLIGHT,XR(G)::B(I)
        • Q(i);SBLOCK,XR(G)::R(A),XS(c)
        • S(j);SBLOCK,XR(G)::P(C)
        • B(a);N_GUARD::R1(G),XB(a)
      • Refutation
        • B(b);
    • Try
      • Q(B);CHECK
      • Vars
        • K(e);N_SPINS(c),S_FLIGHT,XR(G)::B(I)
      • Refutation
        • K(e);N_SPINS(c),P_SPINP(f),S_FLIGHT,XQ(B)
    • Try
      • Q(B);XP(f)
      • Threat
        • DUALS(2)
      • Vars
        • Q(i);SBLOCK,XR(G)::QAB1(B)
        • B(a);XS(F)::P(C)
        • S(j);SBLOCK,XR(G)::QAB1(B)
        • B(b);::R(A),XS(c)
        • B(a);::P(C)
        • S(j);::P(C)
      • Refutation
        • B(b);XP(C)
  • Actual
    • S(F);
    • Threat
      • QAB1(B)
    • Vars
      • K(e);N_SPINS(c),OGATEB,S_FLIGHT,XR(G)::B(I)
      • Q(i);SBLOCK,XR(G)::R(A),XS(c)
      • S(j);SBLOCK,XR(G)::P(C)
      • B(a);N_GUARD::R1(G),XB(a)
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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).