MESON Chess Problem Database

Problem Display
PID: 67911 (1B6/2p1p1p1/4P1pp/Rp2Q2P/5Pk1/P7/5K2/7R w - - 0 1)

Sivak, Bohuslav

1st HM., Hlas l'udu, 1978

1B6/2p1p1p1/4P1pp/Rp2Q2P/5Pk1/P7/5K2/7R

#2

9 + 7

5865 Czech Album (1976-1978) 1983

SOLUTION

  • SOUND
  • Tries
    • 1.Bxc7?
      • 1...gxh5
        • 2.Qxh5#
      • 1...b4
        • 2.Qe2#
      • 1...g5!
    • 1.Rxb5?
      • 1...gxh5
        • 2.Qf5#
      • 1...g5
        • 2.Qf5#
      • 1...c6
        • 2.Qe2#
      • 1...c5!
    • 1.Qe4?
      • 1...b4
        • 2.Qf3#
      • 1...g5
        • 2.f5#
      • 1...c5
        • 2.Qxg6#
      • 1...c6
        • 2.Qxg6#
      • 1...gxh5!
    • 1.Qxb5?
      • 1...Kxf4
        • 2.Rh4#
        • 2.Ra4#
        • 2.Qa4#
        • 2.Qc4#
        • 2.Qb4#
      • 1...gxh5
        • 2.Qf5#
      • 1...g5
        • 2.Qf5#
      • 1...c6
        • 2.Qe2#
      • 1...c5!
  • Keys
    • 1.hxg6!
      • 1...b4
        • 2.Qf5#
      • 1...h5
        • 2.Qg5#
      • 1...c5
        • 2.Qh5#
      • 1...c6
        • 2.Qh5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(I);XP(e)
      • Vars
        • P(c);OGATE,XP(G)::QAB1(F),XP(c)
        • P(b);::QAB(F)
      • Refutation
        • P(c);
    • Try
      • R(E);XP(b)
      • Vars
        • P(c);N_GUARD,XP(G)::QAB1(F)
        • P(c);N_GUARD::QAB1(F)
        • P(e);::QAB(F)
      • Refutation
        • P(e);
    • Try
      • Q(F);
      • Vars
        • P(b);::QAB1(F)
        • P(c);SBLOCK::QAR(F)+P(D)
        • P(e);::QAR2(F),XP(c)
      • Refutation
        • P(c);XP(G)
    • Try
      • Q(F);XP(b)
      • Vars
        • P(c);N_GUARD,XP(G)::QAB1(F)
        • P(c);N_GUARD::QAB1(F)
        • P(e);::QAB(F)
      • Refutation
        • P(e);
  • Actual
    • P(G);XP(c)
    • Vars
      • P(b);::QAB1(F)
      • P(d);N_GUARD::QAR1(F)
      • P(e);::QAB1(F)
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