MESON Chess Problem Database

Problem Display
PID: 174328 (2KR3b/1p6/p3k2N/r1nN4/4PP2/B7/4R3/1q5b w - - 0 1)

Buyanov, Aleksandr N

1st HM., Boletim da UBP, 1986-1987

2KR3b/1p6/p3k2N/r1nN4/4PP2/B7/4R3/1q5b

#2

8 + 8

1077 Boletim da UBP 1989

SOLUTION

  • SOUND
  • Sets
    • 1...Be5
      • 2.f5#
    • 1...Sb3
      • 2.Rd6#
      • 2.Re8#
    • 1...Sd3
      • 2.Rd6#
      • 2.Re8#
    • 1...Sa4
      • 2.Rd6#
      • 2.Re8#
    • 1...Sxe4
      • 2.Rd6#
    • 1...Sd7
      • 2.Re8#
  • Tries
    • 1.Bxc5?
      • threat
        • 2.Rd6#
        • 2.Re8#
      • 1...Qxe4
        • 2.Rd6#
      • 1...Bxe4
        • 2.Rd6#
      • 1...Qb5
        • 2.Rd6#
      • 1...Qb6
        • 2.Re8#
      • 1...Be5
        • 2.Re8#
        • 2.f5#
      • 1...Bf6
        • 2.Sc7#
        • 2.Rd6#
      • 1...Rxc5+!
  • Keys
    • 1.e5!
      • threat
        • 2.Rd6#
      • 1...Bxd5
        • 2.Re8#
      • 1...Bxe5
        • 2.Rxe5#
      • 1...Sd7
        • 2.Sc7#
      • 1...Qb6
        • 2.f5#
      • 1...Se4
        • 2.Sc7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 3
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • B(h);SBLOCK::P(D)
    • S(d);P_SPINS(d),XP(C)::R1(H)
    • S(d);::R(H)
  • Tries
    • Try
      • B(B);XS(d)
      • Threat
        • DUALS(2)
      • Vars
        • Q(a);P_SPINQ(a),XP(C)::R1(H)
        • B(b);P_SPINB(b),XP(C)::R1(H)
        • Q(a);::R1(H)
        • Q(a);::R(H)
      • Refutation
        • R(c);CHECK,XB(B)
  • Actual
    • P(C);
    • Threat
      • R1(H)
    • Vars
      • B(b);SBLOCK,XS(E)::R(H)
      • B(h);OGATE,P_SPINB(h),XP(C)::R1(A),XB(h)
      • S(d);::S(E)
      • Q(a);N_GUARD::P(D)
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