MESON Chess Problem Database

Problem Display
PID: 246359 (3n2N1/1p1Bp3/3p3R/1p1kNbbR/3Pp3/1K1PPP2/3Q1pq1/8 w - - 0 1)

Erokhin, Vladimir Alekseevich

Shakhmatnaya Poeziya, 1998

3n2N1/1p1Bp3/3p3R/1p1kNbbR/3Pp3/1K1PPP2/3Q1pq1/8

#2

11 + 11

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Bh3
      • 2.dxe4#
    • 1...Bg4
      • 2.dxe4#
    • 1...Be6
      • 2.dxe4#
    • 1...Bxd7
      • 2.dxe4#
    • 1...Bf4
      • 2.Sxe7#
    • 1...Bxh6
      • 2.Sxe7#
  • Tries
    • 1.Be6+?
      • 1...Bxe6
        • 2.dxe4#
      • 1...Sxe6!
    • 1.Qb4?
      • threat
        • 2.Qxb5#
      • 1...Bxd7
        • 2.dxe4#
      • 1...Bxe3
        • 2.Sxe7#
      • 1...Se6!
  • Keys
    • 1.Sc4!
      • threat
        • 2.Sb6#
      • 1...bxc4+
        • 2.dxc4#
      • 1...Bxd7
        • 2.Sxe7#
      • 1...Bxe3
        • 2.dxe4#
      • 1...b6
        • 2.Sxb6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 5
  • Sets
    • B(f);N_GUARD::P(C),XP(c)
    • B(f);N_GUARD,XB(J)::P(C),XP(c)
    • B(g);N_GUARD::S(K),XP(j)
    • B(g);N_GUARD,XR(I)::S(K),XP(j)
  • Tries
    • Try
      • B(J);CHECK
      • Vars
        • B(f);XB(J)::P(C),XP(c)
      • Refutation
        • S(k);XB(J)
    • Try
      • Q(A);
      • Threat
        • QAR2(A),XP(d)
      • Vars
        • B(f);N_GUARD,XB(J)::P(C),XP(c)
        • B(g);N_GUARD,XP(D)::S(K),XP(j)
      • Refutation
        • S(k);
  • Actual
    • S(G);
    • Threat
      • S(G)
    • Vars
      • P(d);CHECK,OGATE,XS(G)::P(C),XP(d)
      • B(f);P_SPINB(g),XB(J)::S(K),XP(j)
      • B(g);P_SPINB(f),XP(D)::P(C),XP(c)
      • P(i);::S(G),XP(i)
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