MESON Chess Problem Database

Problem Display
PID: 87832 (3K4/pN6/8/Bk6/p1qpB3/p2Q4/P7/8 w - - 0 1)

Svozilek, Dalibor

American Chess Problemist, 1952

3K4/pN6/8/Bk6/p1qpB3/p2Q4/P7/8

#2

6 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Ka6
      • 2.Qxc4#
  • Tries
    • 1.Bd5?
      • threat
        • 2.Qxc4#
      • 1...Ka6
        • 2.Qxc4#
      • 1...Qxd3!
    • 1.Bc6+?
      • 1...Ka6
        • 2.Qxc4#
      • 1...Kxc6!
  • Keys
    • 1.Kd7!
      • 1...Ka6
        • 2.Qxc4#
      • 1...Qxd3
        • 2.Bxd3#
      • 1...a6
        • 2.Bc6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(e);S_FLIGHT::QAB(B),XQ(c)
  • Tries
    • Try
      • B(C);
      • Threat
        • QAB1(B),XQ(c)
      • Vars
        • K(e);S_FLIGHT::QAB(B),XQ(c)
      • Refutation
        • Q(c);N_SPINQ(c),XQ(B)
    • Try
      • B(C);CHECK
      • Vars
        • K(e);S_FLIGHT::QAB(B),XQ(c)
      • Refutation
        • K(e);N_SPINQ(c),S_FLIGHT,XB(C)
  • Actual
    • K(F);P-FLIGHT
    • Vars
      • K(e);S_FLIGHT::QAB(B),XQ(c)
      • Q(c);N_SPINQ(c),OGATE,XQ(B)::B(C),XQ(c)
      • P(f);SBLOCK::B(C)
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