MESON Chess Problem Database

Problem Display
PID: 6436 (2K1k3/2p4r/5Q2/8/6B1/b7/8/8 w - - 0 1)

Pimenov, Sergey Ivanovich

Pimenov, Vitaly Ivanovich

1st HM., Le Salut Public, 1929

2K1k3/2p4r/5Q2/8/6B1/b7/8/8

#2

3 + 4

3295 Einfuhrung in die Welt des Schachproblem 1984
3296 Shakhmatny zadachi miniaturi 1987
3813 300 Sachmatu Uzdaviniu 1991
5454 Near Snap 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Rh1
      • 2.Bd7#
    • 1...Rh2
      • 2.Bd7#
    • 1...Rh3
      • 2.Bd7#
    • 1...Rh4
      • 2.Bd7#
    • 1...Rh5
      • 2.Bxh5#
      • 2.Bd7#
    • 1...Rh6
      • 2.Bd7#
    • 1...Rd7
      • 2.Bxd7#
    • 1...Rf7
      • 2.Qd8#
    • 1...Rh8
      • 2.Bd7#
    • 1...Be7
      • 2.Bd7#
  • Tries
    • 1.Bh5+?
      • 1...Rf7
        • 2.Qd8#
        • 2.Qxf7#
      • 1...Rxh5!
  • Keys
    • 1.Be6!
      • threat
        • 2.Qd8#
      • 1...Re7
        • 2.Qh8#
      • 1...Rd7
        • 2.Bxd7#
      • 1...Be7
        • 2.Bd7#

This anticipates 159942(1996)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 7
  • Sets
    • R(c);N_GUARD::B(A)
    • R(c);N_GUARD::B(A),XR(c)
    • R(c);SBLOCK::QAR1(B)
    • B(a);S_CUTR(c)::B(A)
  • Tries
    • Try
      • B(A);CHECK
      • Refutation
        • R(c);XB(A)
  • Actual
    • B(A);
    • Threat
      • QAR1(B)
    • Vars
      • R(c);N_GUARD,SBLOCK,S_CUTB(a)::QAR(B)
      • R(c);N_GUARD::B(A),XR(c)
      • B(a);S_CUTR(c)::B(A)
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