MESON Chess Problem Database

Problem Display
PID: 85046 (1B6/3r4/1pn1N1R1/8/2BPkp1N/5R1P/8/n5K1 w - - 0 1)

Pankratiev, Aleksandr Nikolaevich

3rd HM., Uralski Skazi, 1990

1B6/3r4/1pn1N1R1/8/2BPkp1N/5R1P/8/n5K1

#2

9 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rxd4
      • 2.Sg5#
    • 1...Rd5
      • 2.Bd3#
    • 1...Sxd4
      • 2.Sg5#
  • Tries
    • 1.Re3+?
      • 1...fxe3
        • 2.Rg4#
      • 1...Kxe3!
    • 1.Rg5?
      • threat
        • 2.Bd3#
      • 1...Sb4
        • 2.Re5#
      • 1...Se5
        • 2.Rxe5#
      • 1...Rxd4!
  • Keys
    • 1.Sf5!
      • threat
        • 2.Rxf4#
      • 1...Kxf3
        • 2.Sg5#
      • 1...Kxf5
        • 2.Bd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 3
  • Sets
    • R(f);SBLOCK,XP(E)::S(G)
    • R(f);SBLOCK::B(D)
    • S(e);SBLOCK,XP(E)::S(G)
  • Tries
    • Try
      • R(B);CHECK
      • Vars
        • P(c);SBLOCK,XR(B)::R(H)
      • Refutation
        • K(b);P-FLIGHT,XR(B)
    • Try
      • R(H);
      • Threat
        • B(D)
      • Vars
        • S(e);N_GUARD::R1(H)
        • S(e);N_GUARD::R1(H),XS(e)
      • Refutation
        • R(f);XP(E)
  • Actual
    • S(F);
    • Threat
      • R1(B),XP(c)
    • Vars
      • K(b);S_FLIGHT,XR(B)::S(G)
      • K(b);P_SPINP(c),S_FLIGHT,XS(F)::B(D)
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