MESON Chess Problem Database

Problem Display
PID: 9753 (6R1/2K5/8/2N2n1p/3k1N1R/8/6Q1/5B2 w - - 0 1)

Hirste-Haywood, J

Illustrated Western Weekly News, 1909

6R1/2K5/8/2N2n1p/3k1N1R/8/6Q1/5B2

#2

7 + 3

SOLUTION

  • SOUND
  • Sets
    • 1...Kc3
      • 2.Sd5#
    • 1...Ke3
      • 2.Sd5#
    • 1...Kxc5
      • 2.Se6#
  • Tries
    • 1.Sfd3+?
      • 1...Kc3
        • 2.Qb2#
      • 1...Ke3
        • 2.Re4#
        • 2.Qe2#
        • 2.Qf2#
      • 1...Sxh4!
    • 1.Sxh5+?
      • 1...Kc3
        • 2.Rc4#
      • 1...Ke3
        • 2.Re4#
        • 2.Qe2#
      • 1...Kxc5
        • 2.Qc6#
      • 1...Ke5
        • 2.Qe4#
      • 1...Sxh4!
    • 1.Sfe6+?
      • 1...Kc3
        • 2.Rc4#
      • 1...Ke3
        • 2.Re4#
        • 2.Qe2#
      • 1...Ke5!
    • 1.Sg6+?
      • 1...Kc3
        • 2.Rc4#
      • 1...Ke3
        • 2.Re4#
        • 2.Qe2#
      • 1...Kxc5
        • 2.Qc6#
      • 1...Sxh4!
    • 1.Qe4+?
      • 1...Kxc5
        • 2.Se6#
        • 2.Qc4#
      • 1...Kc3!
    • 1.Qb2+?
      • 1...Kxc5
        • 2.Qc3#
        • 2.Qb6#
      • 1...Ke3!
    • 1.Qd2+?
      • 1...Kxc5
        • 2.Se6#
        • 2.Qc3#
      • 1...Ke5!
  • Keys
    • 1.Rg5!
      • 1...Kc3
        • 2.Sd5#
      • 1...Ke3
        • 2.Sd5#
      • 1...Kxc5
        • 2.Se6#
      • 1...Ke5
        • 2.Qb2#
      • 1...Sxh4
        • 2.Qd2#
      • 1...Se3
        • 2.Se2#
        • 2.Qb2#
        • 2.Qd2#
      • 1...Sg3
        • 2.Qd2#
      • 1...Sd6
        • 2.Qd2#
      • 1...Sh6
        • 2.Qd2#
      • 1...Se7
        • 2.Qd2#
      • 1...Sg7
        • 2.Qd2#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::S(C)
    • K(a);S_FLIGHT,XS(E)::S(C)
  • Tries
    • Try
      • S(C);CHECK
      • Vars
        • K(a);S_FLIGHT::QAB1(B)
      • Refutation
        • S(b);XR(D)
    • Try
      • S(C);CHECK,XP(c)
      • Vars
        • K(a);OGATE,S_FLIGHT::R1(D)
        • K(a);S_FLIGHT,XS(E)::QAR1(B)
        • K(a);S_FLIGHT::QAR1(B)
      • Refutation
        • S(b);XR(D)
    • Try
      • S(C);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT::R1(D)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(C);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT::R1(D)
        • K(a);S_FLIGHT,XS(E)::QAR1(B)
      • Refutation
        • S(b);XR(D)
    • Try
      • Q(B);CHECK
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(B);CHECK
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(B);CHECK
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • R(G);
    • Vars
      • K(a);S_FLIGHT::S(C)
      • K(a);P_SPINS(b),S_FLIGHT,XS(E)::S(C)
      • K(a);P_SPINS(b),S_FLIGHT::QAB(B)
      • S(b);XR(D)::QAR2(B)
      • S(b);::QAR2(B)
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