MESON Chess Problem Database

Problem Display
PID: 167043 (6B1/7Q/2RPPp2/4bN2/1N1PkrpK/5pP1/5P2/8 w - - 0 1)

Sovik, Stefan

Phenix, 2017

6B1/7Q/2RPPp2/4bN2/1N1PkrpK/5pP1/5P2/8

#2

11 + 6

SOLUTION

  • SOUND
  • Tries
    • 1.Rc4?
      • 1...Rxf5
        • 2.Qb7#
      • 1...Bxd6
        • 2.Sxd6#
      • 1...Bxd4!
    • 1.Rc5?
      • 1...Bxd4
        • 2.Qb7#
      • 1...Bxd6
        • 2.Qb7#
      • 1...Rxf5!
    • 1.Qh6?
      • 1...Kxf5
        • 2.Qh7#
      • 1...Rxf5
        • 2.Qe3#
      • 1...Bxd4
        • 2.Qxf4#
      • 1...Bxd6!
  • Keys
    • 1.Qb7!
      • 1...Kxf5
        • 2.Qh7#
      • 1...Rxf5
        • 2.Rc4#
      • 1...Bxd4
        • 2.Rc5#
      • 1...Bxd6
        • 2.Rc5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(G);
      • Vars
        • R(c);P_SPINR(c),SBLOCK,XS(F)::QAB(J)
        • B(e);XP(H)::QAB(J)+S(F),DCHECK,XB(e)
      • Refutation
        • B(e);P_SPINB(e),XP(D)
    • Try
      • R(G);
      • Vars
        • B(e);XP(D)::QAB(J)
        • B(e);XP(H)::QAB(J)
      • Refutation
        • R(c);P_SPINR(c),XS(F)
    • Try
      • Q(J);
      • Vars
        • K(b);OGATEB,S_FLIGHT,XS(F)::QAB(J)
        • R(c);OGATE,SBLOCK,XS(F)::QAR1(J)
        • B(e);N_GUARD,XP(D)::QAR1(J),XR(c)
      • Refutation
        • B(e);XP(H)
  • Actual
    • Q(J);
    • Vars
      • K(b);OGATEB,S_FLIGHT,XS(F)::QAB(J)
      • R(c);SBLOCK,XS(F)::QAB(J)+R(G)
      • B(e);XP(D)::QAB(J)+R(G)
      • B(e);XP(H)::QAB(J)+R(G)
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