MESON Chess Problem Database

Problem Display
PID: 181902 (4R3/2Q5/8/4NN2/4k3/5p2/2K2p2/8 w - - 0 1)

Howard, Kenneth Samuel

San Francisco Chronicle, 1905

4R3/2Q5/8/4NN2/4k3/5p2/2K2p2/8

#2

5 + 3

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Kd5
      • 2.Qc4#
      • 2.Qc6#
  • Tries
    • 1.Sd3+?
      • 1...Kd5
        • 2.Sb4#
        • 2.Sf4#
        • 2.Re5#
        • 2.Qc5#
      • 1...Kxf5!
    • 1.Sxf3+?
      • 1...Kxf3
        • 2.Qg3#
      • 1...Kd5
        • 2.Se3#
        • 2.Re5#
      • 1...Kxf5!
    • 1.Sc4+?
      • 1...Kd5
        • 2.Sce3#
        • 2.Sb6#
        • 2.Re5#
      • 1...Kxf5!
    • 1.Sg4+?
      • 1...Kd5
        • 2.Sge3#
        • 2.Sf6#
        • 2.Re5#
      • 1...Kxf5!
    • 1.Sc6+?
      • 1...Kd5
        • 2.Sb4#
      • 1...Kxf5!
    • 1.Sg6+?
      • 1...Kd5
        • 2.Sf4#
        • 2.Re5#
      • 1...Kxf5!
    • 1.Sd7+?
      • 1...Kd5
        • 2.Sb6#
        • 2.Sf6#
        • 2.Re5#
        • 2.Qc5#
      • 1...Kxf5!
    • 1.Sf7+?
      • 1...Kd5
        • 2.Re5#
      • 1...Kxf5!
  • Keys
    • 1.Se3!
      • threat
        • 2.Sc6#
      • 1...Kxe3
        • 2.Sc6#
      • 1...Kd4
        • 2.Sxf3#
      • 1...Kf4
        • 2.Sf7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(B);CHECK
      • Refutation
        • K(c);S_FLIGHT,XS(C)
    • Try
      • S(B);CHECK,XP(b)
      • Vars
        • K(c);S_FLIGHT,XS(B)::QAR1(D)
      • Refutation
        • K(c);S_FLIGHT,XS(C)
    • Try
      • S(B);CHECK
      • Refutation
        • K(c);S_FLIGHT,XS(C)
    • Try
      • S(B);CHECK
      • Refutation
        • K(c);S_FLIGHT,XS(C)
    • Try
      • S(B);CHECK
      • Vars
        • K(c);S_FLIGHT::S(B)
      • Refutation
        • K(c);S_FLIGHT,XS(C)
    • Try
      • S(B);CHECK
      • Refutation
        • K(c);S_FLIGHT,XS(C)
    • Try
      • S(B);CHECK
      • Refutation
        • K(c);S_FLIGHT,XS(C)
    • Try
      • S(B);CHECK
      • Vars
        • K(c);S_FLIGHT::R1(E)
      • Refutation
        • K(c);S_FLIGHT,XS(C)
  • Actual
    • S(C);
    • Threat
      • R(E)+S(B)
    • Vars
      • K(c);P-FLIGHT,XS(C)::R(E)+S(B)
      • K(c);P-FLIGHT::S(B),XP(b)
      • K(c);P-FLIGHT::QAB(D)+S(B)
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