MESON Chess Problem Database

Problem Display
PID: 194204 (7K/5P2/1p4Q1/n2k4/2RP4/5R2/2N3n1/8 w - - 0 1)

Wheeler, Charles Henry

Pittsburgh Gazette-Times, 1917

7K/5P2/1p4Q1/n2k4/2RP4/5R2/2N3n1/8

#2

7 + 4

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Se1
      • 2.Se3#
    • 1...Se3
      • 2.Sxe3#
    • 1...Sf4
      • 2.Se3#
    • 1...Sh4
      • 2.Se3#
    • 1...Sb3
      • 2.Qc6#
    • 1...Sc6
      • 2.Qxc6#
    • 1...Sb7
      • 2.Qc6#
    • 1...b5
      • 2.Rc5#
  • Tries
    • 1.Rfc3?
      • threat
        • 2.Sb4#
      • 1...Sc6
        • 2.Qxc6#
      • 1...Sxc4!
    • 1.Rd3?
      • 1...Sxc4
        • 2.Sb4#
      • 1...Se1
        • 2.Se3#
      • 1...Se3
        • 2.Sxe3#
      • 1...Sf4
        • 2.Se3#
      • 1...Sh4
        • 2.Se3#
      • 1...Sb3
        • 2.Qc6#
      • 1...Sc6
        • 2.Qxc6#
      • 1...Sb7
        • 2.Qc6#
      • 1...b5
        • 2.Rc5#
      • 1...Kxc4!
    • 1.Rf4?
      • 1...Sxf4
        • 2.Se3#
      • 1...Sxc4
        • 2.Sb4#
      • 1...Se1
        • 2.Se3#
      • 1...Se3
        • 2.Sxe3#
      • 1...Sh4
        • 2.Se3#
      • 1...Sb3
        • 2.Qc6#
      • 1...Sc6
        • 2.Qxc6#
      • 1...Sb7
        • 2.Qc6#
      • 1...b5
        • 2.Rc5#
      • 1...Kxc4!
    • 1.Qf5+?
      • 1...Kd6
        • 2.f8Q#
        • 2.f8B#
      • 1...Kxc4!
    • 1.f8Q?
      • threat
        • 2.Qff7#
        • 2.Qfg8#
      • 1...Sf4
        • 2.Se3#
      • 1...Kxc4!
    • 1.f8S?
      • threat
        • 2.Qe6#
      • 1...Sf4
        • 2.Se3#
      • 1...Kxc4!
  • Keys
    • 1.Rb3!
      • 1...Kxc4
        • 2.Qe6#
      • 1...Sxb3
        • 2.Qc6#
      • 1...Sxc4
        • 2.Rb5#
      • 1...Se1
        • 2.Se3#
      • 1...Se3
        • 2.Sxe3#
      • 1...Sf4
        • 2.Se3#
      • 1...Sh4
        • 2.Se3#
      • 1...Sc6
        • 2.Qxc6#
      • 1...Sb7
        • 2.Qc6#
      • 1...b5
        • 2.Rc5#

This is a version of 152776

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • S(a);N_GUARD::S(A)
    • S(a);N_GUARD::S(A),XS(a)
    • S(b);N_GUARD::QAB1(E)
    • S(b);N_GUARD::QAB1(E),XS(b)
    • P(d);N_GUARD::R1(C)
  • Tries
    • Try
      • R(B);
      • Threat
        • S(A)
      • Vars
        • S(b);N_GUARD::QAB1(E),XS(b)
      • Refutation
        • S(b);XR(C)
    • Try
      • R(B);
      • Vars
        • S(b);SBLOCK,XR(C)::S(A)
        • S(a);N_GUARD::S(A)
        • S(a);N_GUARD::S(A),XS(a)
        • S(b);N_GUARD::QAB1(E)
        • S(b);N_GUARD::QAB1(E),XS(b)
        • P(d);N_GUARD::R1(C)
      • Refutation
        • K(c);S_FLIGHT,XR(C)
    • Try
      • R(B);
      • Vars
        • S(a);N_GUARD,XR(B)::S(A)
        • S(b);SBLOCK,XR(C)::S(A)
        • S(a);N_GUARD::S(A)
        • S(a);N_GUARD::S(A),XS(a)
        • S(b);N_GUARD::QAB1(E)
        • S(b);N_GUARD::QAB1(E),XS(b)
        • P(d);N_GUARD::R1(C)
      • Refutation
        • K(c);S_FLIGHT,XR(C)
    • Try
      • Q(E);CHECK
      • Vars
        • K(c);P-FLIGHT::P=Q
      • Refutation
        • K(c);S_FLIGHT,XR(C)
    • Try
      • P(F);
      • Threat
        • DUALS(2)
      • Vars
        • S(a);N_GUARD::S(A)
      • Refutation
        • K(c);S_FLIGHT,XR(C)
    • Try
      • P(F);
      • Threat
        • QAB1(E)
      • Vars
        • S(a);N_GUARD::S(A)
      • Refutation
        • K(c);S_FLIGHT,XR(C)
  • Actual
    • R(B);
    • Vars
      • K(c);S_FLIGHT,XR(C)::QAB(E)
      • S(b);N_GUARD,XR(B)::QAB1(E)
      • S(b);SBLOCK,XR(C)::R(B)
      • S(a);N_GUARD::S(A)
      • S(a);N_GUARD::S(A),XS(a)
      • S(b);N_GUARD::QAB1(E),XS(b)
      • S(b);N_GUARD::QAB1(E)
      • P(d);N_GUARD::R1(C)
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