MESON Chess Problem Database

Problem Display
PID: 68163 (2R5/1p1p4/pK1Pp3/R1N1Pp2/P1k5/1p1p4/1r1r4/BN5Q w - - 0 1)

Pituk, Alexander

Schach, 1978

2R5/1p1p4/pK1Pp3/R1N1Pp2/P1k5/1p1p4/1r1r4/BN5Q

#2

10 + 10

5865 Czech Album (1976-1978) 1983

SOLUTION

  • SOUND
  • Sets
    • 1...Rxb1
      • 2.Sxa6#
    • 1...Ra2
      • 2.Sxa6#
    • 1...Rbc2
      • 2.Sxa6#
    • 1...f4
      • 2.Qe4#
  • Tries
    • 1.Qh4+?
      • 1...Kd5
        • 2.Sxb3#
        • 2.Sxd3#
        • 2.Sxa6#
        • 2.Sxb7#
        • 2.Sxd7#
      • 1...f4!
  • Keys
    • 1.Qe1!
      • 1...Kb4
        • 2.Sxd3#
      • 1...Kd4
        • 2.Sxb3#
      • 1...Kd5
        • 2.Sxb3#
      • 1...Rxb1
        • 2.Sxa6#
      • 1...Rd1
        • 2.Sxe6#
      • 1...Ra2
        • 2.Sxa6#
      • 1...Rbc2
        • 2.Sxa6#
      • 1...Rdc2
        • 2.Sxe6#
      • 1...Re2
        • 2.Sxe6#
      • 1...Rf2
        • 2.Sxe6#
      • 1...Rg2
        • 2.Sxe6#
      • 1...Rh2
        • 2.Sxe6#
      • 1...f4
        • 2.Qe4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 9
    • REMOVED MATES = 0
  • Sets
    • R(a);XS(B)::R(J)+S(F),XP(g)
    • R(a);::R(J)+S(F),XP(g)
    • P(f);N_GUARD::QAR2(C)
  • Tries
    • Try
      • Q(C);CHECK
      • Refutation
        • P(f);P_SPINP(f)
  • Actual
    • Q(C);
    • Vars
      • K(e);P-FLIGHT,P_SPINR(b)::S(F),XP(d)
      • K(e);P-FLIGHT,P_SPINR(a)::S(F),XP(c)
      • K(e);S_FLIGHT::R(E)+S(F),XP(c)
      • R(a);XS(B)::R(J)+S(F),XP(g)
      • R(b);::R(J)+S(F),XP(h)
      • R(a);::R(J)+S(F),XP(g)
      • P(f);N_GUARD::QAR2(C)
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