MESON Chess Problem Database

Problem Display
PID: 51015 (6B1/8/7Q/8/2pk4/5K2/R7/3n4 w - - 0 1)

Gledhill, Walter

Wharfedale and Airedale Observer, 1888

6B1/8/7Q/8/2pk4/5K2/R7/3n4

#2

4 + 3

5454 Near Snap 2007

SOLUTION

  • SOUND
  • Sets
    • 1...Kd3
      • 2.Qd2#
    • 1...Ke5
      • 2.Qf4#
    • 1...Sb2
      • 2.Qe3#
    • 1...Sf2
      • 2.Qe3#
    • 1...Sc3
      • 2.Qe3#
    • 1...Se3
      • 2.Qxe3#
    • 1...c3
      • 2.Qd6#
  • Tries
    • 1.Rc2?
      • threat
        • 2.Qd6#
      • 1...Kd3
        • 2.Qd2#
      • 1...Ke5
        • 2.Qf4#
      • 1...Sc3
        • 2.Qe3#
      • 1...Se3
        • 2.Qxe3#
      • 1...Kc5!
    • 1.Ra3?
      • threat
        • 2.Qd6#
      • 1...Ke5
        • 2.Qf4#
      • 1...Sc3
        • 2.Qe3#
      • 1...Se3
        • 2.Qxe3#
      • 1...Kc5!
    • 1.Qd2+?
      • 1...Ke5
        • 2.Qf4#
      • 1...Kc5!
    • 1.Qf4+?
      • 1...Kc3
        • 2.Qxc4#
      • 1...Kd3
        • 2.Qd2#
        • 2.Qxc4#
      • 1...Kc5!
    • 1.Qg5?
      • 1...Kd3
        • 2.Qd2#
      • 1...Sb2
        • 2.Qe3#
      • 1...Sf2
        • 2.Qe3#
      • 1...Sc3
        • 2.Rd2#
        • 2.Qe3#
      • 1...Se3
        • 2.Qxe3#
      • 1...c3
        • 2.Qd5#
      • 1...Kc3!
    • 1.Qg7+?
      • 1...Kd3
        • 2.Bh7#
      • 1...Kc5!
    • 1.Qh4+?
      • 1...Kc3
        • 2.Qxc4#
      • 1...Kd3
        • 2.Qxc4#
      • 1...Ke5
        • 2.Qf4#
      • 1...Kc5!
    • 1.Qe6?
      • 1...Kc3
        • 2.Qxc4#
      • 1...Kd3
        • 2.Qxc4#
      • 1...Sb2
        • 2.Qe3#
      • 1...Sf2
        • 2.Qe3#
      • 1...Sc3
        • 2.Qe3#
      • 1...Se3
        • 2.Qxe3#
      • 1...c3
        • 2.Qd5#
        • 2.Qd6#
      • 1...Kc5!
    • 1.Qf6+?
      • 1...Kd3
        • 2.Bh7#
      • 1...Kc5!
    • 1.Qh8+?
      • 1...Kd3
        • 2.Bh7#
      • 1...Kc5!
  • Keys
    • 1.Rb2!
      • 1...Kc3
        • 2.Qd2#
      • 1...Kd3
        • 2.Qd2#
      • 1...Kc5
        • 2.Qb6#
      • 1...Ke5
        • 2.Qf4#
      • 1...Sxb2
        • 2.Qe3#
      • 1...Sf2
        • 2.Qe3#
      • 1...Sc3
        • 2.Qe3#
      • 1...Se3
        • 2.Qxe3#
      • 1...c3
        • 2.Qd6#

This anticipates 38804(1997)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(c);P-FLIGHT::QAR1(C)
    • K(c);S_FLIGHT::QAB1(C)
    • S(a);N_GUARD::QAB1(C)
    • S(a);N_GUARD::QAB1(C),XS(a)
    • P(b);SBLOCK::QAR2(C)
  • Tries
    • Try
      • R(A);
      • Threat
        • QAR2(C)
      • Vars
        • K(c);P-FLIGHT::QAR1(C)
        • K(c);S_FLIGHT::QAB1(C)
        • S(a);N_GUARD::QAB1(C)
        • S(a);N_GUARD::QAB1(C),XS(a)
      • Refutation
        • K(c);P_SPINP(b),S_FLIGHT
    • Try
      • R(A);
      • Threat
        • QAR2(C)
      • Vars
        • K(c);S_FLIGHT::QAB1(C)
        • S(a);N_GUARD::QAB1(C)
        • S(a);N_GUARD::QAB1(C),XS(a)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(C);CHECK
      • Vars
        • K(c);S_FLIGHT::QAB1(C)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(C);CHECK
      • Vars
        • K(c);OGATE,S_FLIGHT::QAR1(C),XP(b)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(C);
      • Vars
        • K(c);P-FLIGHT::QAR1(C)
        • S(a);N_GUARD::QAB1(C)
        • S(a);N_GUARD::QAB1(C),XS(a)
        • P(b);SBLOCK::QAR1(C)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(C);CHECK
      • Vars
        • K(c);P-FLIGHT::B(D)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(C);CHECK
      • Vars
        • K(c);OGATE,S_FLIGHT::QAR1(C),XP(b)
        • K(c);OGATE,P-FLIGHT::QAB1(C),XP(b)
        • K(c);S_FLIGHT::QAB1(C)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(C);
      • Vars
        • K(c);S_FLIGHT::QAR1(C),XP(b)
        • K(c);P-FLIGHT::QAB1(C),XP(b)
        • S(a);N_GUARD::QAB1(C)
        • S(a);N_GUARD::QAB1(C),XS(a)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(C);CHECK
      • Vars
        • K(c);P-FLIGHT::B(D)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(C);CHECK
      • Vars
        • K(c);P-FLIGHT::B(D)
      • Refutation
        • K(c);S_FLIGHT
  • Actual
    • R(A);
    • Vars
      • K(c);S_FLIGHT::QAB1(C)
      • K(c);P-FLIGHT::QAR1(C)
      • S(a);N_GUARD,XR(A)::QAB1(C)
      • S(a);N_GUARD::QAB1(C)
      • S(a);N_GUARD::QAB1(C),XS(a)
      • P(b);SBLOCK::QAR2(C)
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