MESON Chess Problem Database

Problem Display
PID: 108211 (BQ6/8/N1r1pK2/3rP3/R1npkN2/1R4P1/5Pb1/B7 w - - 0 1)

Bourd, Evgeny

Novice Composers TT, 2002

BQ6/8/N1r1pK2/3rP3/R1npkN2/1R4P1/5Pb1/B7

#2

11 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rdc5
      • 2.Sxc5#
    • 1...Rdd6
      • 2.Sc5#
    • 1...Rd7
      • 2.Sc5#
    • 1...Rd8
      • 2.Sc5#
    • 1...Rcc5
      • 2.Sxc5#
    • 1...Rb6
      • 2.Sc5#
    • 1...Rcd6
      • 2.Sc5#
    • 1...Bf1
      • 2.f3#
    • 1...Bh3
      • 2.f3#
    • 1...Sb2
      • 2.Re3#
    • 1...Sd2
      • 2.Re3#
    • 1...Sa3
      • 2.Re3#
    • 1...Se3
      • 2.Rxe3#
    • 1...Sa5
      • 2.Re3#
    • 1...Sxe5
      • 2.Re3#
    • 1...Sb6
      • 2.Re3#
    • 1...Sd6
      • 2.Re3#
  • Tries
    • 1.Bxc6?
      • threat
        • 2.Sc5#
      • 1...Se3
        • 2.Rxe3#
      • 1...d3!
  • Keys
    • 1.Qa7!
      • threat
        • 2.Qh7#
      • 1...Rxe5
        • 2.Qxd4#
      • 1...Sxe5
        • 2.Re3#
      • 1...Se3
        • 2.Rxe3#
      • 1...d3
        • 2.Qe3#
      • 1...Rd7
        • 2.Sc5#
      • 1...Rc7
        • 2.Qxd4#
      • 1...Bh3
        • 2.f3#
      • 1...Sd6
        • 2.Re3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 12
  • Sets
    • R(e);N_GUARD,P_SPINR(f)::S(H),XR(e)
    • R(e);N_GUARD,P_SPINR(f)::S(H)
    • R(f);N_GUARD,P_SPINR(e)::S(H),XR(f)
    • R(f);N_GUARD,P_SPINR(e)::S(H)
    • B(a);N_GUARD::P(B)
    • S(b);N_GUARD,P_SPINP(c)::R1(C)
    • S(b);N_GUARD,P_SPINP(c)::R1(C),XS(b)
    • S(b);N_GUARD,P_SPINP(c),XP(G)::R1(C)
  • Tries
    • Try
      • B(J);P_PINR(e),XR(f)
      • Threat
        • S(H)
      • Vars
        • S(b);N_GUARD,P_SPINP(c)::R1(C),XS(b)
      • Refutation
        • P(c);P_SPINS(b)
  • Actual
    • Q(K);
    • Threat
      • QAB(K)
    • Vars
      • R(e);N_GUARD,P_SPINR(f),XP(G)::QAR1(K),XP(c)
      • S(b);N_GUARD,P_SPINP(c),XP(G)::R1(C)
      • S(b);N_GUARD,P_SPINP(c)::R1(C),XS(b)
      • P(c);OGATE,P_SPINS(b)::QAR1(K)
      • R(e);N_GUARD,P_SPINR(f)::S(H)
      • R(f);P_SPINR(e)::QAR1(K),XP(c)
      • B(a);N_GUARD::P(B)
      • S(b);N_GUARD,P_SPINP(c)::R1(C)
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Developed and maintained by Brian Stephenson.
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