MESON Chess Problem Database

Problem Display
PID: 142081 (2B2n2/3R4/KPk3p1/2p3r1/8/b2N4/8/2R3B1 w - - 0 1)

Bolotbekov, S?

Phenix, 1989

2B2n2/3R4/KPk3p1/2p3r1/8/b2N4/8/2R3B1

#2

7 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Rxg1
      • 2.Se5#
    • 1...Rg2
      • 2.Se5#
    • 1...Rg3
      • 2.Se5#
    • 1...Rg4
      • 2.Se5#
    • 1...Re5
      • 2.Sxe5#
    • 1...Bb2
      • 2.Sb4#
    • 1...Bb4
      • 2.Sxb4#
  • Tries
    • 1.Bh2?
      • threat
        • 2.Rd6#
      • 1...Sxd7
        • 2.Bb7#
      • 1...Rg3
        • 2.Se5#
      • 1...Rd5
        • 2.Rc7#
      • 1...Re5
        • 2.Sxe5#
      • 1...c4!
  • Keys
    • 1.Bxc5!
      • threat
        • 2.Rd6#
      • 1...Rxc5
        • 2.Se5#
      • 1...Bxc5
        • 2.Sb4#
      • 1...Sxd7
        • 2.Bb7#
      • 1...Rd5
        • 2.Rc7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 7
  • Sets
    • R(c);N_GUARD,XB(B)::S(C)
    • R(c);N_GUARD::S(C)
    • R(c);N_GUARD::S(C),XR(c)
    • B(a);N_GUARD::S(C)
    • B(a);N_GUARD::S(C),XB(a)
  • Tries
    • Try
      • B(B);
      • Threat
        • R1(F)
      • Vars
        • S(f);SBLOCK,XR(F)::B(G)
        • R(c);N_GUARD::S(C)
        • R(c);SBLOCK::R1(F)
        • R(c);N_GUARD::S(C),XR(c)
      • Refutation
        • P(b);
  • Actual
    • B(B);XP(b)
    • Threat
      • R1(F)
    • Vars
      • R(c);N_GUARD,P_SPINR(c),XB(B)::S(C)
      • B(a);N_GUARD,P_SPINB(a),XB(B)::S(C)
      • S(f);SBLOCK,XR(F)::B(G)
      • R(c);SBLOCK::R1(F)
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