MESON Chess Problem Database

Problem Display
PID: 165386 (8/8/2R5/5N2/1N2k3/8/7Q/7K w - - 0 1)

Cudmore, Henry

Chess Player's Annual, 1891

8/8/2R5/5N2/1N2k3/8/7Q/7K

#2

5 + 1

5454 Near Snap 2017
15148 Sadier Collection 2017

SOLUTION

  • SOUND
  • Tries
    • 1.Sd5?
      • 1...Kd3
        • 2.Qc2#
      • 1...Kf3
        • 2.Qg2#
      • 1...Kxf5
        • 2.Qf4#
      • 1...Kxd5!
    • 1.Sd4?
      • 1...Kxd4
        • 2.Qf4#
      • 1...Ke3!
    • 1.Sh4?
      • 1...Kd4
        • 2.Qf4#
      • 1...Ke3!
    • 1.Rc4+?
      • 1...Kf3
        • 2.Rf4#
        • 2.Qg2#
      • 1...Kxf5!
    • 1.Re6+?
      • 1...Kf3
        • 2.Qg3#
      • 1...Kxf5!
  • Keys
    • 1.Sd3!
      • 1...Kxd3
        • 2.Qc2#
      • 1...Kf3
        • 2.Qg2#
      • 1...Kd5
        • 2.Qg2#
      • 1...Kxf5
        • 2.Qf4#

Anticipated by 24204(1884)

This anticipates 143280(1893), 178121(1900), 194131(1917), 205572(1925), 170483(1958)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);
      • Vars
        • K(a);S_FLIGHT::QAB1(B)
        • K(a);S_FLIGHT,XS(D)::QAR1(B)
      • Refutation
        • K(a);S_FLIGHT,XS(C)
    • Try
      • S(D);
      • Vars
        • K(a);P-FLIGHT,XS(D)::QAR2(B)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • S(D);
      • Vars
        • K(a);P-FLIGHT::QAR2(B)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • R(E);CHECK
      • Refutation
        • K(a);S_FLIGHT,XS(D)
    • Try
      • R(E);CHECK
      • Vars
        • K(a);S_FLIGHT::QAR1(B)
      • Refutation
        • K(a);S_FLIGHT,XS(D)
  • Actual
    • S(C);
    • Vars
      • K(a);OGATEB,S_FLIGHT,XS(C)::QAB1(B)
      • K(a);S_FLIGHT::QAB1(B)
      • K(a);S_FLIGHT::QAB(B)
      • K(a);S_FLIGHT,XS(D)::QAR1(B)
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