MESON Chess Problem Database

Problem Display
PID: 53174 (8/1b6/NQ6/1p1r4/k7/3Pp3/K1P1B3/8 w - - 0 1)

Dyachuk, Vasyl Vasilovich

2nd Comm., Die Schwalbe, 2002

8/1b6/NQ6/1p1r4/k7/3Pp3/K1P1B3/8

#2

6 + 5

23 Die Schwalbe 2004

SOLUTION

  • SOUND
  • Sets
    • 1...b4
      • 2.Qxb4#
  • Tries
    • 1.Bd1?
      • threat
        • 2.c3#
        • 2.c4#
      • 1...Rxd3
        • 2.cxd3#
      • 1...Bxa6
        • 2.c3#
      • 1...b4
        • 2.Qxb4#
      • 1...e2!
    • 1.c4?
      • threat
        • 2.Bd1#
      • 1...Rxd3
        • 2.Qxb5#
      • 1...b4
        • 2.Qxb4#
      • 1...Bxa6!
  • Keys
    • 1.c3!
      • threat
        • 2.Bd1#
      • 1...Rxd3
        • 2.Sc5#
      • 1...b4
        • 2.Qxb4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • P(c);OGATE::QAR1(F),XP(c)
  • Tries
    • Try
      • B(C);
      • Threat
        • DUALS(2)
      • Vars
        • R(d);OGATE,XP(D)::B(C)+P(B),XR(d)
        • B(e);XS(E)::B(C)+P(B)
        • P(c);OGATE::QAR1(F),XP(c)
      • Refutation
        • P(a);
    • Try
      • P(B);
      • Threat
        • B(C)
      • Vars
        • R(d);N_GUARD,XP(D)::QAB1(F),XP(c)
        • P(c);OGATE::QAR1(F),XP(c)
      • Refutation
        • B(e);XS(E)
  • Actual
    • P(B);
    • Threat
      • B(C)
    • Vars
      • R(d);N_GUARD,XP(D)::S(E)
      • P(c);OGATE::QAR1(F),XP(c)
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