MESON Chess Problem Database

Problem Display
PID: 176608 (1R5Q/6R1/2pp4/8/K1kpP3/B1Pp4/1P1b1q2/8 w - - 0 1)

Erokhin, Vladimir Alekseevich

Schach-Echo, 1979

1R5Q/6R1/2pp4/8/K1kpP3/B1Pp4/1P1b1q2/8

#2

8 + 7

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Bxc3
      • 2.b3#
  • Tries
    • 1.Bxd6?
      • threat
        • 2.Rb4#
      • 1...Bxc3
        • 2.b3#
      • 1...c5!
  • Keys
    • 1.Rc7!
      • threat
        • 2.Rxc6#
      • 1...dxc3
        • 2.b3#
      • 1...Qf5
        • 2.Qxd4#
      • 1...c5
        • 2.Rb4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • B(a);SBLOCK,XP(C)::P(A)
  • Tries
    • Try
      • B(B);XP(g)
      • Threat
        • R1(G)
      • Vars
        • B(a);SBLOCK,XP(C)::P(A)
      • Refutation
        • P(f);
  • Actual
    • R(F);P_PINP(f)
    • Threat
      • R(F),XP(f)
    • Vars
      • P(e);XP(C)::P(A)
      • Q(b);N_GUARD::QAR1(H),XP(e)
      • P(f);::R1(G)
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