MESON Chess Problem Database

Problem Display
PID: 129880 (2kN4/BNp2p2/p7/1B3K2/7b/8/2Q5/8 w - - 0 1)

Mikan, Ilja

Svobodny smer, 1947

2kN4/BNp2p2/p7/1B3K2/7b/8/2Q5/8

#2

6 + 5

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Bxd8
      • 2.Sd6#
    • 1...c5
      • 2.Qxc5#
    • 1...c6
      • 2.Qxc6#
  • Tries
    • 1.Qc6?
      • threat
        • 2.Qd7#
      • 1...Bxd8
        • 2.Sd6#
      • 1...axb5!
  • Keys
    • 1.Kg4!
      • threat
        • 2.Qf5#
      • 1...f5+
        • 2.Qxf5#
      • 1...Bxd8
        • 2.Sd6#
      • 1...c5
        • 2.Qxc5#
      • 1...c6
        • 2.Qxc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • B(a);SBLOCK,XS(F)::S(E)
    • P(c);OGATEB::QAR(A),XP(c)
    • P(c);OGATEB::QAR2(A),XP(c)
  • Tries
    • Try
      • Q(A);
      • Threat
        • QAB1(A)
      • Vars
        • B(a);SBLOCK,XS(F)::S(E)
      • Refutation
        • P(b);XB(B)
  • Actual
    • K(C);S_FLIGHT
    • Threat
      • QAB(A)
    • Vars
      • P(d);CHECK::QAB(A),XP(d)
      • B(a);SBLOCK,XS(F)::S(E)
      • P(c);OGATEB::QAR(A),XP(c)
      • P(c);OGATEB::QAR2(A),XP(c)
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