MESON Chess Problem Database

Problem Display
PID: 101996 (1B6/6p1/Q6p/3pN2B/4p3/3Pk1P1/1P6/4K3 w - - 0 1)

Busik, Vladimir

Sachove umeni (Ceskoslovensky sach), 1973

1B6/6p1/Q6p/3pN2B/4p3/3Pk1P1/1P6/4K3

#2

8 + 5

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kd4
      • 2.Qb6#
      • 2.Qa7#
    • 1...exd3
      • 2.Qxd3#
  • Tries
    • 1.Sg4+?
      • 1...Kd4
        • 2.Ba7#
      • 1...Kf3!
    • 1.Sg6?
      • 1...Kd4
        • 2.Ba7#
      • 1...d4
        • 2.Bf4#
      • 1...exd3!
    • 1.Qf6?
      • threat
        • 2.Qf2#
      • 1...Kd4
        • 2.Ba7#
        • 2.Qb6#
      • 1...exd3
        • 2.Qf4#
      • 1...gxf6!
    • 1.dxe4?
      • threat
        • 2.Qd3#
      • 1...Kxe4
        • 2.Qd3#
      • 1...dxe4
        • 2.Ba7#
        • 2.Qb6#
        • 2.Qa7#
      • 1...Kd4!
  • Keys
    • 1.Qg6!
      • 1...Kd4
        • 2.Qb6#
      • 1...exd3
        • 2.Qxd3#
      • 1...d4
        • 2.Qxe4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • P(b);OGATE,XP(C)::QAR1(G),XP(b)
  • Tries
    • Try
      • S(E);CHECK
      • Vars
        • K(a);S_FLIGHT::B(H)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • S(E);
      • Vars
        • K(a);S_FLIGHT::B(H)
        • P(c);SBLOCK::B(H)
      • Refutation
        • P(b);XP(C)
    • Try
      • Q(G);
      • Threat
        • QAB1(G)
      • Vars
        • P(b);XP(C)::QAB1(G)
      • Refutation
        • P(e);XQ(G)
    • Try
      • P(C);XP(b)
      • Threat
        • QAR1(G)
      • Vars
        • K(a);P-FLIGHT,XP(C)::QAB1(G)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • Q(G);
    • Vars
      • K(a);S_FLIGHT::QAB(G)
      • P(b);OGATE,XP(C)::QAR1(G),XP(b)
      • P(c);N_GUARD::QAR1(G),XP(b)
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