MESON Chess Problem Database

Problem Display
PID: 48396 (qnb5/5p2/6p1/4nB2/r3Q1p1/r3Rp1k/3R1B2/b6K w - - 0 1)

Gulyaev, Aleksandr Pavlovich (aka Grin, AP)

1st Prize, Vecherni Moskva, 1928

qnb5/5p2/6p1/4nB2/r3Q1p1/r3Rp1k/3R1B2/b6K

#2

6 + 12

273 Mat Plus 1994

SOLUTION

  • SOUND
  • Sets
    • 1...Sd3
      • 2.Rxf3#
    • 1...Sc4
      • 2.Qxg4#
    • 1...Sec6
      • 2.Qxf3#
    • 1...Sed7
      • 2.Bxg4#
  • Tries
    • 1.Qf4?
      • threat
        • 2.Qh2#
        • 2.Qg3#
        • 2.Qh6#
      • 1...g5
        • 2.Qh2#
        • 2.Qg3#
      • 1...Rxf4!
  • Keys
    • 1.Rd8!
      • threat
        • 2.Rh8#
      • 1...Sd3
        • 2.Rxf3#
      • 1...Sc4
        • 2.Qxg4#
      • 1...Sec6
        • 2.Qxf3#
      • 1...Sed7
        • 2.Bxg4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • S(g);N_GUARD,S_CUTR(b)::R(D),XP(c)
    • S(g);N_GUARD,S_CUTR(e)::QAB1(E),XP(f)
    • S(g);N_GUARD,S_CUTQ(j)::QAR2(E),XP(c)
    • S(g);N_GUARD,S_CUTB(l)::B(F),XP(f)
  • Tries
    • Try
      • Q(E);
      • Threat
        • DUALS(3)
      • Refutation
        • R(e);XQ(E)
  • Actual
    • R(B);
    • Threat
      • R(B)
    • Vars
      • S(g);N_GUARD,S_CUTR(b)::R(D),XP(c)
      • S(g);N_GUARD,S_CUTR(e)::QAB1(E),XP(f)
      • S(g);N_GUARD,S_CUTQ(j)::QAR2(E),XP(c)
      • S(g);N_GUARD,S_CUTB(l)::B(F),XP(f)
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