MESON Chess Problem Database

Problem Display
PID: 102024 (2N5/3pprp1/3p3Q/4nkB1/2Bp2NP/3PRP2/8/2K5 w - - 0 1)

Dombrovskis, Alfreds A

64 Shakhmatnoe obozrenie, 1972

2N5/3pprp1/3p3Q/4nkB1/2Bp2NP/3PRP2/8/2K5

#2

10 + 8

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rf6
      • 2.Sxe7#
    • 1...Rf8
      • 2.Sxe7#
    • 1...Sxd3+
      • 2.Bxd3#
    • 1...dxe3
      • 2.Sxe3#
    • 1...d5
      • 2.Rxe5#
    • 1...e6
      • 2.Sxd6#
  • Tries
    • 1.Qh7+?
      • 1...g6
        • 2.Sh6#
      • 1...Sg6!
  • Keys
    • 1.Qh5!
      • 1...Sxd3+
        • 2.Bxd3#
      • 1...Sxf3
        • 2.Rxf3#
      • 1...Sxc4
        • 2.Qxf7#
      • 1...Sxg4
        • 2.fxg4#
      • 1...dxe3
        • 2.Sxe3#
      • 1...d5
        • 2.Rxe5#
      • 1...Rf6
        • 2.Sxe7#
      • 1...Rf8
        • 2.Sxe7#
      • 1...Sc6
        • 2.Qxf7#
      • 1...Sg6
        • 2.Bh6#
      • 1...e6
        • 2.Sxd6#
      • 1...g6
        • 2.Sh6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • R(g);N_GUARD::S(J),XP(f)
    • S(b);CHECK,OGATE,XP(B)::B(E),XS(b)
    • P(a);XR(C)::S(F),XP(a)
    • P(d);N_GUARD::R1(C),XS(b)
    • P(f);N_GUARD::S(J),XP(d)
  • Tries
    • Try
      • Q(I);CHECK
      • Vars
        • P(h);P_SPINP(h)::S(F)
      • Refutation
        • S(b);P_SPINS(b)
  • Actual
    • Q(I);
    • Vars
      • S(b);CHECK,OGATE,XP(B)::B(E),XS(b)
      • S(b);OGATE,XP(D)::R(C),XS(b)
      • S(b);N_GUARD,XB(E)::QAR2(I),XR(g)
      • S(b);OGATE,XS(F)::P(D),XS(b)
      • P(a);XR(C)::S(F),XP(a)
      • P(d);N_GUARD::R1(C),XS(b)
      • R(g);N_GUARD::S(J),XP(f)
      • S(b);N_GUARD::QAR2(I),XR(g)
      • S(b);S_CUTP(h)::QAR(I)+B(H)
      • P(f);N_GUARD::S(J),XP(d)
      • P(h);N_GUARD::S(F)
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