MESON Chess Problem Database

Problem Display
PID: 66114 (K7/1p3R1p/2Qb2n1/2pN1P1r/4k1N1/R3Pn2/Bp4P1/rq6 w - - 0 1)

Ruszczynski, Piotr

2nd Comm., Ahues-60 JT, 1982

K7/1p3R1p/2Qb2n1/2pN1P1r/4k1N1/R3Pn2/Bp4P1/rq6

#2

10 + 11

5454 Near Snap 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Qd3
      • 2.Sc3#
    • 1...Rxf5
      • 2.Sdf6#
    • 1...Be5
      • 2.Sf2#
    • 1...Sfe5
      • 2.Sf2#
    • 1...Sge5
      • 2.Sf2#
    • 1...b5
      • 2.Sb4#
      • 2.Sf4#
      • 2.Sb6#
      • 2.Sc7#
      • 2.Se7#
    • 1...b6
      • 2.Sb4#
      • 2.Sf4#
      • 2.Sxb6#
      • 2.Sc7#
      • 2.Se7#
  • Tries
    • 1.Qb5?
      • threat
        • 2.Sc3#
      • 1...Qd3
        • 2.Qxd3#
      • 1...Qc1
        • 2.Qd3#
      • 1...Qe1
        • 2.Qd3#
      • 1...Be5
        • 2.Sf2#
      • 1...c4
        • 2.Sdf6#
      • 1...Qc2!
    • 1.Qc8?
      • threat
        • 2.Sdf6#
      • 1...Rxf5
        • 2.Qxf5#
      • 1...Be5
        • 2.Sf2#
      • 1...Be7!
  • Keys
    • 1.Qd7!
      • threat
        • 2.Sdf6#
      • 1...Rxf5
        • 2.Qxf5#
      • 1...Be5
        • 2.Sf2#
      • 1...Be7
        • 2.Sc3#

This anticipates 56106(1994)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 3
  • Sets
    • Q(b);SBLOCK::QAB(H)+S(F),DCHECK
    • R(g);SBLOCK,XP(G)::QAB(H)+S(F),DCHECK
    • B(h);SBLOCK::S(E)
    • S(d);SBLOCK::S(E)
    • S(i);SBLOCK::S(E)
  • Tries
    • Try
      • Q(H);
      • Threat
        • S(F)
      • Vars
        • Q(b);N_GUARD::QAB1(H),XQ(b)
        • Q(b);N_GUARD::QAB1(H)
        • B(h);SBLOCK::S(E)
        • P(f);::S(F)
      • Refutation
        • Q(b);
    • Try
      • Q(H);
      • Threat
        • S(F)
      • Vars
        • R(g);OGATE,XP(G)::QAB1(H),XR(g)
        • B(h);SBLOCK::S(E)
      • Refutation
        • B(h);
  • Actual
    • Q(H);
    • Threat
      • S(F)
    • Vars
      • R(g);OGATE,XP(G)::QAB1(H),XR(g)
      • B(h);SBLOCK::S(E)
      • B(h);::S(F)
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