MESON Chess Problem Database

Problem Display
PID: 268426 (5Qb1/K1P2nr1/6p1/2PkPP2/3Np3/pP2R3/r1n1N2B/2R2B2 w - - 0 1)

Garaj, Ivan

Sarkits, Anatoly L

1st HM., Pat a Mat, 2005

5Qb1/K1P2nr1/6p1/2PkPP2/3Np3/pP2R3/r1n1N2B/2R2B2

#2

13 + 9

6490 yacpdb 2023

SOLUTION

  • SOUND
  • Sets
    • 1...Sa1
      • 2.Qa8#
    • 1...Se1
      • 2.Qa8#
    • 1...Sxe3
      • 2.Qa8#
    • 1...Sxe5
      • 2.Qd6#
    • 1...Sg5
      • 2.Qd6#
    • 1...Sd6
      • 2.Qxd6#
    • 1...Sh6
      • 2.Qd6#
    • 1...Sd8
      • 2.Qd6#
    • 1...Sh8
      • 2.Qd6#
  • Tries
    • 1.Kb6?
      • threat
        • 2.Qa8#
      • 1...Sxd4
        • 2.Sc3#
      • 1...Sxe5
        • 2.Qd6#
      • 1...Sd6
        • 2.Qxd6#
      • 1...Sd8
        • 2.Qd6#
      • 1...Sb4!
    • 1.Sf4+?
      • 1...Kxe5
        • 2.Qxg7#
      • 1...Kxd4!
    • 1.Bg2?
      • threat
        • 2.Bxe4#
      • 1...Sxe3
        • 2.Qa8#
      • 1...Sd6
        • 2.Qxd6#
      • 1...Sg5
        • 2.Qd6#
      • 1...gxf5!
    • 1.Rd1?
      • threat
        • 2.Sc3#
      • 1...Sd6
        • 2.Qxd6#
      • 1...Sxd4!
    • 1.Rxc2?
      • threat
        • 2.Qa8#
      • 1...Sxe5
        • 2.Qd6#
      • 1...Sd6
        • 2.Qxd6#
      • 1...Sd8
        • 2.Qd6#
      • 1...Rxc2!
    • 1.Qe8?
      • threat
        • 2.Qc6#
      • 1...Kxc5
        • 2.Qb5#
      • 1...Sxd4
        • 2.Sf4#
      • 1...Sxe5
        • 2.Qxe5#
      • 1...Sb4
        • 2.Qe6#
      • 1...Sd8!
  • Keys
    • 1.Rd3!
      • threat
        • 2.Sc3#
      • 1...Sxd4
        • 2.Qa8#
      • 1...exd3
        • 2.Bg2#
      • 1...Sd6
        • 2.Qxd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 8
  • Sets
    • S(b);::QAB(M)
    • S(b);XR(F)::QAB(M)
    • S(g);N_GUARD,P_PINP(L),XP(I)::QAR1(M)
    • S(g);N_GUARD,P_PINP(L)::QAR1(M)
    • S(g);N_GUARD,P_PINP(L)::QAR1(M),XS(g)
  • Tries
    • Try
      • K(K);S_FLIGHT
      • Threat
        • QAB(M)
      • Vars
        • S(b);SBLOCK,XS(G)::S(C)
        • S(g);N_GUARD,XP(I)::QAR1(M)
        • S(g);N_GUARD::QAR1(M),XS(g)
        • S(g);N_GUARD::QAR1(M)
      • Refutation
        • S(b);
    • Try
      • S(C);CHECK
      • Vars
        • K(e);N_GUARD,P-FLIGHT,P_SPINP(d),XP(I)::QAB(M),XR(h)
      • Refutation
        • K(e);P-FLIGHT,XS(G)
    • Try
      • B(B);P_PINP(d)
      • Threat
        • B(B),XP(d)
      • Vars
        • S(b);XR(F)::QAB(M)
        • S(g);N_GUARD,P_PINP(L)::QAR1(M),XS(g)
        • S(g);N_GUARD,P_PINP(L)::QAR1(M)
      • Refutation
        • P(f);XP(J)
    • Try
      • R(A);
      • Threat
        • S(C)
      • Vars
        • S(g);N_GUARD,P_PINP(L)::QAR1(M),XS(g)
      • Refutation
        • S(b);P_SPINS(b),XS(G)
    • Try
      • R(A);XS(b)
      • Threat
        • QAB(M)
      • Vars
        • S(g);N_GUARD,P_PINP(L),XP(I)::QAR1(M)
        • S(g);N_GUARD,P_PINP(L)::QAR1(M),XS(g)
        • S(g);N_GUARD,P_PINP(L)::QAR1(M)
      • Refutation
        • R(a);XR(A)
    • Try
      • Q(M);
      • Threat
        • QAB1(M)
      • Vars
        • K(e);OGATEB,P-FLIGHT,P_SPINS(b),XP(H)::QAR1(M)
        • S(b);SBLOCK,XS(G)::S(C)
        • S(g);OGATE,P_PINP(L),XP(I)::QAR1(M),XS(g)
        • S(b);::QAB1(M)
      • Refutation
        • S(g);P_PINP(L)
  • Actual
    • R(F);
    • Threat
      • S(C)
    • Vars
      • S(b);P_SPINS(b),XS(G)::QAB(M)
      • P(d);OGATEB,XR(F)::B(B)
      • S(g);N_GUARD,P_PINP(L)::QAR1(M),XS(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).