MESON Chess Problem Database

Problem Display
PID: 157608 (1Q6/8/8/p3N3/k7/1n6/1Kb5/8 w - - 0 1)

Antipov, Viacheslav Pavlovich

Sa ogneupory, 1985

1Q6/8/8/p3N3/k7/1n6/1Kb5/8

#2

3 + 4

15148 Sadier Collection 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Bb1
      • 2.Qxb3#
    • 1...Bd3
      • 2.Qxb3#
    • 1...Be4
      • 2.Qxb3#
    • 1...Bf5
      • 2.Qxb3#
    • 1...Bg6
      • 2.Qxb3#
    • 1...Bh7
      • 2.Qxb3#
  • Tries
    • 1.Sd7?
      • 1...Bb1
        • 2.Qxb3#
      • 1...Bd3
        • 2.Qxb3#
      • 1...Be4
        • 2.Qxb3#
      • 1...Bf5
        • 2.Qxb3#
      • 1...Bg6
        • 2.Qxb3#
      • 1...Bh7
        • 2.Qxb3#
      • 1...Sa1
        • 2.Sc5#
      • 1...Sc1
        • 2.Sc5#
      • 1...Sd2
        • 2.Sc5#
      • 1...Sd4
        • 2.Sc5#
      • 1...Sc5
        • 2.Sxc5#
      • 1...Bd1!
  • Keys
    • 1.Sd3!
      • threat
        • 2.Qe8#
      • 1...Bxd3
        • 2.Qxb3#
      • 1...Sd4
        • 2.Sc5#
      • 1...Sc5
        • 2.Sxc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 5
  • Sets
    • B(a);N_GUARD::QAB1(C),XS(b)
  • Tries
    • Try
      • S(B);
      • Vars
        • B(a);N_GUARD::QAB1(C),XS(b)
        • S(b);N_GUARD::S(B)
        • S(b);N_GUARD::S(B),XS(b)
      • Refutation
        • B(a);
  • Actual
    • S(B);
    • Threat
      • QAB(C)
    • Vars
      • B(a);N_GUARD,XS(B)::QAB1(C),XS(b)
      • S(b);N_GUARD::S(B)
      • S(b);N_GUARD::S(B),XS(b)
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