MESON Chess Problem Database

Problem Display
PID: 96559 (8/p7/rp6/PP2P3/NkB3Q1/1P1P4/8/1K6 w - - 0 1)

Mihai, P

Problemas, 1967

8/p7/rp6/PP2P3/NkB3Q1/1P1P4/8/1K6

#2

9 + 4

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Qc8?
      • 1...Ka3
        • 2.Qf8#
      • 1...Rxa5
        • 2.Qf8#
      • 1...bxa5
        • 2.Qc5#
      • 1...Kxa5!
    • 1.Qf4?
      • 1...Ka3
        • 2.Qf8#
      • 1...Kxa5
        • 2.Qd2#
      • 1...Rxa5
        • 2.Qf8#
      • 1...bxa5!
    • 1.Qh4?
      • 1...Ka3
        • 2.Qe7#
      • 1...Kxa5
        • 2.Qe1#
      • 1...Rxa5
        • 2.Qe7#
      • 1...bxa5!
    • 1.Qg5?
      • 1...Ka3
        • 2.Qe7#
      • 1...Kxa5
        • 2.Qd2#
      • 1...Rxa5
        • 2.Qe7#
      • 1...bxa5!
  • Keys
    • 1.Qd4!
      • 1...Ka3
        • 2.Qd6#
      • 1...Kxa5
        • 2.Qc3#
      • 1...Rxa5
        • 2.Qd6#
      • 1...bxa5
        • 2.Qc5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(F);
      • Vars
        • K(a);S_FLIGHT::QAB(F)
        • R(b);SBLOCK,XP(G)::QAB(F)
        • P(c);N_GUARD,SBLOCK,XP(G)::QAB1(F)
      • Refutation
        • K(a);S_FLIGHT,XP(G)
    • Try
      • Q(F);
      • Vars
        • K(a);S_FLIGHT::QAB(F)
        • K(a);S_FLIGHT,XP(G)::QAB(F)
        • R(b);SBLOCK,XP(G)::QAB(F)
      • Refutation
        • P(c);XP(G)
    • Try
      • Q(F);
      • Vars
        • K(a);S_FLIGHT::QAB(F)
        • K(a);S_FLIGHT,XP(G)::QAB(F)
        • R(b);SBLOCK,XP(G)::QAB(F)
      • Refutation
        • P(c);XP(G)
    • Try
      • Q(F);
      • Vars
        • K(a);S_FLIGHT::QAB(F)
        • K(a);S_FLIGHT,XP(G)::QAB(F)
        • R(b);SBLOCK,XP(G)::QAB(F)
      • Refutation
        • P(c);XP(G)
  • Actual
    • Q(F);
    • Vars
      • K(a);S_FLIGHT::QAB(F)
      • K(a);S_FLIGHT,XP(G)::QAB(F)
      • R(b);SBLOCK,XP(G)::QAB(F)
      • P(c);N_GUARD,SBLOCK,XP(G)::QAB1(F)
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