MESON Chess Problem Database

Problem Display
PID: 164411 (7K/B7/p6Q/pk1n4/1n1p1R2/1PPbb3/4N3/8 w - - 0 1)

Valters, N

Sachmatija, 2006

7K/B7/p6Q/pk1n4/1n1p1R2/1PPbb3/4N3/8

#2

7 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Bb1
      • 2.c4#
    • 1...Bc2
      • 2.c4#
    • 1...Be4
      • 2.c4#
    • 1...Bf5
      • 2.c4#
    • 1...Bh7
      • 2.c4#
    • 1...Bc1
      • 2.Sxd4#
    • 1...Bd2
      • 2.Sxd4#
    • 1...Bxf4
      • 2.Sxd4#
    • 1...Sxc3
      • 2.Qb6#
    • 1...Sxf4
      • 2.Qb6#
    • 1...Sb6
      • 2.Qxb6#
    • 1...Sc7
      • 2.Qb6#
    • 1...Se7
      • 2.Qb6#
  • Tries
    • 1.Qd6?
      • threat
        • 2.Qc5#
      • 1...Sb6
        • 2.Qxb6#
      • 1...dxc3!
  • Keys
    • 1.Rf5!
      • threat
        • 2.Qb6#
      • 1...Bxf5
        • 2.c4#
      • 1...Bxh6
        • 2.Sxd4#
      • 1...dxc3
        • 2.Sxc3#
      • 1...Sc6
        • 2.Rxd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 12
  • Sets
    • B(a);N_GUARD::P(C)
    • B(b);N_GUARD::S(A),XP(d)
    • B(b);N_GUARD,XR(D)::S(A),XP(d)
    • S(g);N_GUARD,XP(C)::QAR1(E)
    • S(g);N_GUARD,XR(D)::QAR1(E)
    • S(g);N_GUARD::QAR1(E),XS(g)
    • S(g);N_GUARD::QAR1(E)
  • Tries
    • Try
      • Q(E);
      • Threat
        • QAR1(E)
      • Vars
        • S(g);N_GUARD::QAR1(E),XS(g)
      • Refutation
        • P(d);XP(C)
  • Actual
    • R(D);P_PINS(g)
    • Threat
      • QAR1(E)
    • Vars
      • B(a);N_GUARD,N_SPINS(g),XR(D)::P(C)
      • B(b);N_GUARD,XQ(E)::S(A),XP(d)
      • P(d);XP(C)::S(A),XP(d)
      • S(c);N_GUARD::R(D),XS(g)
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