MESON Chess Problem Database

Problem Display
PID: 80816 (1BRNQ3/rn3p1K/5p2/pp1p1P2/3k4/3P3R/6pN/1n3bb1 w - - 0 1)

Kiss, Ivan

2nd HM., Tungsram Cup, 1980

1BRNQ3/rn3p1K/5p2/pp1p1P2/3k4/3P3R/6pN/1n3bb1

#2

9 + 12

6424 Czech Album (1979-1981) 1986
3752 FIDE Album (1980-1982) 1988

SOLUTION

  • SOUND
  • Sets
    • 1...Bxd3
      • 2.Sf3#
    • 1...Bxh2
      • 2.Qe3#
    • 1...Be3
      • 2.Qxe3#
    • 1...Sd6
      • 2.Bxa7#
    • 1...Sxd8
      • 2.Bxa7#
  • Tries
    • 1.Qxb5?
      • threat
        • 2.Qa4#
      • 1...Bxd3
        • 2.Qxd3#
      • 1...Sc5
        • 2.Qxc5#
      • 1...Be3
        • 2.Sf3#
      • 1...Sd2
        • 2.Qb2#
      • 1...Sa3
        • 2.Qb2#
      • 1...Sc3
        • 2.Sc6#
      • 1...a4
        • 2.Qb4#
      • 1...Sd6!
    • 1.Qe6?
      • threat
        • 2.Qxf6#
      • 1...Bxd3
        • 2.Sf3#
      • 1...Bxh2
        • 2.Qe3#
      • 1...fxe6
        • 2.Sxe6#
      • 1...Be3
        • 2.Qxe3#
      • 1...Ra6!
    • 1.Qe7?
      • threat
        • 2.Qxf6#
      • 1...Bxd3
        • 2.Sf3#
      • 1...Bxh2
        • 2.Qe3#
      • 1...Be3
        • 2.Qxe3#
      • 1...Ra6!
  • Keys
    • 1.Qe1!
      • threat
        • 2.Qh4#
      • 1...Bxd3
        • 2.Sf3#
      • 1...Bxh2
        • 2.Qf2#
        • 2.Qe3#
      • 1...Be3
        • 2.Qxe3#
      • 1...Be2
        • 2.Qxg1#
      • 1...Bf2
        • 2.Qxf2#
      • 1...Sd2
        • 2.Qa1#
      • 1...Sc3
        • 2.Qxc3#
      • 1...Sc5
        • 2.Sc6#
      • 1...Sd6
        • 2.Bxa7#

Also 4th Prize, Probleemblad, 1982!

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 2
  • Sets
    • B(b);P_PINP(D),SBLOCK,XP(B)::S(A)
    • B(c);N_GUARD,XS(A)::QAB1(I)
    • B(c);N_GUARD::QAB1(I),XB(c)
    • S(k);N_GUARD::B(F),XR(j)
    • S(k);N_GUARD,XS(H)::B(F),XR(j)
  • Tries
    • Try
      • Q(I);XP(g)
      • Threat
        • QAR(I)
      • Vars
        • B(b);OGATE,P_PINP(D),XP(B)::QAR1(I),XB(b)
        • S(k);N_GUARD::QAB1(I),XS(k)
        • B(c);SBLOCK::S(A)
        • S(a);N_GUARD::QAB(I)
        • S(a);SBLOCK::S(H)
        • P(f);N_GUARD::QAR2(I)
      • Refutation
        • S(k);
    • Try
      • Q(I);
      • Threat
        • QAB(I),XP(i)
      • Vars
        • B(b);P_PINP(D),SBLOCK,XP(B)::S(A)
        • B(c);N_GUARD,XS(A)::QAB1(I)
        • P(l);XQ(I)::S(H),XP(l)
        • B(c);N_GUARD::QAB1(I),XB(c)
      • Refutation
        • R(j);
    • Try
      • Q(I);
      • Threat
        • QAB(I),XP(i)
      • Vars
        • B(b);P_PINP(D),SBLOCK,XP(B)::S(A)
        • B(c);N_GUARD,XS(A)::QAB1(I)
        • B(c);N_GUARD::QAB1(I),XB(c)
      • Refutation
        • R(j);
  • Actual
    • Q(I);
    • Threat
      • QAR(I)
    • Vars
      • B(b);P_PINP(D),SBLOCK,XP(B)::S(A)
      • B(c);N_GUARD::QAB1(I),XB(c)
      • B(b);OGATE::QAB(I),XB(c)
      • B(c);N_GUARD::QAB(I),XB(c)
      • S(a);OGATE::QAB(I)
      • S(a);N_GUARD::QAB1(I),XS(a)
      • S(k);SBLOCK::S(H)
      • S(k);N_GUARD::B(F),XR(j)
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