MESON Chess Problem Database

Problem Display
PID: 187157 (4K3/3NbN2/R2pkp1R/2prPrp1/3ppp2/5B2/4Q3/8 w - - 0 1)

Erokhin, Vladimir Alekseevich

Suomen Shakki, 1981

4K3/3NbN2/R2pkp1R/2prPrp1/3ppp2/5B2/4Q3/8

#2

8 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Bd8
      • 2.Sf8#
      • 2.Sxd8#
    • 1...Bf8
      • 2.Sxf8#
      • 2.Sd8#
  • Tries
    • 1.Rxd6+?
      • 1...Bxd6
        • 2.Sd8#
      • 1...Rxd6!
    • 1.Rxf6+?
      • 1...Bxf6
        • 2.Sf8#
      • 1...Rxf6!
  • Keys
    • 1.Qxe4!
      • threat
        • 2.Qxd5#
      • 1...Rdxe5
        • 2.Sxc5#
      • 1...Rfxe5
        • 2.Sxg5#
        • 2.Bg4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(D);CHECK,P_PINP(j),XP(h)
      • Vars
        • B(k);XR(D)::S(G)
      • Refutation
        • R(e);XR(D)
    • Try
      • R(E);CHECK,XP(j)
      • Vars
        • B(k);XR(E)::S(F)
      • Refutation
        • R(f);XR(E)
  • Actual
    • Q(A);XP(b)
    • Threat
      • QAB1(A),XR(e)
    • Vars
      • R(e);N_GUARD,P_SPINR(e),XP(C)::S(F),XP(d)
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