MESON Chess Problem Database

Problem Display
PID: 40660 (3q4/6Qp/3Rn1pP/1b2Nkn1/1R5P/1B2Pp2/1Brp1N1K/8 w - - 0 1)

Barnes, Barry Peter

2nd HM., Mansfield MT, 1987

3q4/6Qp/3Rn1pP/1b2Nkn1/1R5P/1B2Pp2/1Brp1N1K/8

#2

11 + 10

4640 Chess Wizardry: The New ABC of Chess Problems 1996
4199 Barnes about Chess Problems 2001
56 The Problemist 2001

SOLUTION

  • SOUND
  • Sets
    • 1...Sh3
      • 2.Bxe6#
    • 1...Se4
      • 2.Bxe6#
    • 1...Sf7
      • 2.Bxe6#
    • 1...Sf4
      • 2.Rxf4#
    • 1...Sc5
      • 2.Rf4#
    • 1...Sc7
      • 2.Rf4#
    • 1...Sxg7
      • 2.Rf4#
    • 1...Sf8
      • 2.Rf4#
  • Tries
    • 1.Sd7?
      • threat
        • 2.Rd5#
        • 2.Qe5#
      • 1...Qxd7
        • 2.Qe5#
        • 2.Qf6#
      • 1...Sxg7
        • 2.Rf4#
      • 1...d1Q
        • 2.Qe5#
      • 1...d1R
        • 2.Qe5#
      • 1...Qf6
        • 2.Qxf6#
      • 1...Qc7
        • 2.Qe5#
        • 2.Qf6#
      • 1...Qa8
        • 2.Qe5#
        • 2.Qf6#
      • 1...Qb8
        • 2.Qe5#
        • 2.Qf6#
      • 1...Qh8
        • 2.Rd5#
      • 1...Bc4
        • 2.Qe5#
      • 1...Bc6
        • 2.Qe5#
      • 1...Sf7
        • 2.Bxe6#
      • 1...Sd4
        • 2.Qe5#
      • 1...Sf4
        • 2.Rxf4#
        • 2.Qe5#
      • 1...Sc5
        • 2.Rf4#
        • 2.Qe5#
      • 1...Sc7
        • 2.Rf4#
        • 2.Qe5#
      • 1...Sf8
        • 2.Rf4#
        • 2.Qe5#
      • 1...Rc5!
    • 1.Sf7?
      • threat
        • 2.Qe5#
      • 1...Qxd6+
        • 2.Sxd6#
      • 1...Sxf7
        • 2.Bxe6#
      • 1...Sxg7
        • 2.Rf4#
      • 1...Qf6
        • 2.Qxf6#
      • 1...Qh8
        • 2.Rd5#
      • 1...Rc5!
    • 1.Bxc2+?
      • 1...Se4
        • 2.Bxe4#
      • 1...Bd3!
  • Keys
    • 1.Sc4!
      • threat
        • 2.Qe5#
      • 1...Qxd6+
        • 2.Sxd6#
      • 1...Sxg7
        • 2.Rxb5#
      • 1...Qf6
        • 2.Qxf6#
      • 1...Qh8
        • 2.Rd5#
      • 1...Sf7
        • 2.Bxc2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 3
    • REMOVED MATES = 6
  • Sets
    • S(f);N_GUARD::B(D),XS(g)
    • S(g);N_GUARD::R1(F),XS(g)
    • S(g);N_GUARD::R1(F)
    • S(g);N_GUARD,XQ(K)::R1(F)
  • Tries
    • Try
      • S(H);
      • Threat
        • DUALS(2)
      • Vars
        • S(g);N_GUARD,XQ(K)::R1(F)
        • P(b);P_PINS(B)::QAR1(K)
        • Q(j);N_GUARD::QAR1(K),XQ(j)
        • Q(j);::R(I)
        • B(d);::QAR1(K)
        • S(f);N_GUARD::B(D),XS(g)
        • S(g);::QAR1(K)
      • Refutation
        • R(a);
    • Try
      • S(H);
      • Threat
        • QAR1(K)
      • Vars
        • Q(j);CHECK,XR(I)::S(H),XQ(j)
        • S(f);N_GUARD,XS(H)::B(D),XS(g)
        • S(g);N_GUARD,XQ(K)::R1(F)
        • Q(j);N_GUARD::QAR1(K),XQ(j)
        • Q(j);N_GUARD::R(I)
      • Refutation
        • R(a);
    • Try
      • B(D);CHECK,XR(a)
      • Vars
        • S(f);N_GUARD,P_SPINS(f)::B(D),XS(f)
      • Refutation
        • B(d);P_SPINB(d)
  • Actual
    • S(H);
    • Threat
      • QAR1(K)
    • Vars
      • Q(j);CHECK,XR(I)::S(H),XQ(j)
      • S(g);N_GUARD,XQ(K)::R(F),XB(d)
      • Q(j);N_GUARD::QAR1(K),XQ(j)
      • Q(j);N_GUARD::R(I)
      • S(f);N_GUARD::B(D),XR(a)
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