MESON Chess Problem Database

Problem Display
PID: 74919 (b1n5/2Q2p2/2p1kP1p/K1pp1R2/4ppP1/B6N/BR3pn1/8 w - - 0 1)

Blunar, Stefan

Golha, Jan

3rd HM., Pravda (Bratislava), 2001

(First published on Fri Jun 29 2001)

b1n5/2Q2p2/2p1kP1p/K1pp1R2/4ppP1/B6N/BR3pn1/8

#2

9 + 12

SOLUTION

  • SOUND
  • Sets
    • 1...Se1
      • 2.Sxf4#
    • 1...Se3
      • 2.Sxf4#
    • 1...Sh4
      • 2.Sxf4#
    • 1...Sb6
      • 2.Qe7#
    • 1...Sd6
      • 2.Qe7#
    • 1...Sa7
      • 2.Qe7#
    • 1...Se7
      • 2.Qxe7#
    • 1...c4
      • 2.Qxc8#
    • 1...h5
      • 2.Sg5#
  • Tries
    • 1.Bxc5?
      • threat
        • 2.Qxc8#
      • 1...Sb6
        • 2.Qd6#
        • 2.Qe7#
      • 1...Sd6
        • 2.Qxd6#
        • 2.Qe7#
      • 1...Sa7
        • 2.Qd6#
        • 2.Qe7#
      • 1...Se7
        • 2.Qd6#
        • 2.Qxe7#
      • 1...Bb7!
    • 1.Re2?
      • threat
        • 2.Rxe4#
      • 1...Se3
        • 2.Sxf4#
      • 1...Sd6
        • 2.Qe7#
      • 1...c4
        • 2.Qxc8#
      • 1...e3!
    • 1.Rb7?
      • threat
        • 2.Qe5#
        • 2.Qd7#
      • 1...Sb6
        • 2.Qe5#
        • 2.Qxc6#
        • 2.Qe7#
      • 1...Sd6
        • 2.Qd7#
        • 2.Qe7#
      • 1...Bxb7!
    • 1.Qxc6+?
      • 1...Sd6
        • 2.Bxd5#
      • 1...Bxc6!
  • Keys
    • 1.Rb6!
      • threat
        • 2.Bxd5#
      • 1...Sxb6
        • 2.Qe7#
      • 1...Se3
        • 2.Sxf4#
      • 1...Sd6
        • 2.Qe7#
      • 1...Se7
        • 2.Qxe7#
      • 1...c4
        • 2.Qxc8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 4
  • Sets
    • S(b);N_GUARD::S(D),XP(d)
    • S(l);N_GUARD::QAR1(I)
    • S(l);N_GUARD::QAR1(I),XS(l)
    • P(e);N_SPINP(f)::QAB(I),XS(l)
    • P(i);N_GUARD::S(D)
  • Tries
    • Try
      • B(C);XP(e)
      • Threat
        • QAB(I),XS(l)
      • Refutation
        • B(k);
    • Try
      • R(B);N_PINP(f),P_PINP(c)
      • Threat
        • R(B),XP(c)
      • Vars
        • S(b);N_GUARD,N_SPINP(c),P_SPINP(f)::S(D),XP(d)
        • S(l);N_GUARD::QAR1(I)
        • P(e);::QAB(I),XS(l)
      • Refutation
        • P(c);
    • Try
      • R(B);
      • Threat
        • DUALS(2)
      • Refutation
        • B(k);XR(B)
    • Try
      • Q(I);CHECK,XP(g)
      • Vars
        • S(l);P_SPINS(l)::B(A),XP(f)
      • Refutation
        • B(k);XQ(I)
  • Actual
    • R(B);
    • Threat
      • B(A),XP(f)
    • Vars
      • S(l);N_GUARD,XR(B)::QAR1(I)
      • S(b);N_GUARD::S(D),XP(d)
      • S(l);N_GUARD::QAR1(I)
      • S(l);N_GUARD::QAR1(I),XS(l)
      • P(e);N_SPINP(f),P_SPINP(g)::QAB(I),XS(l)
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