MESON Chess Problem Database

Problem Display
PID: 189687 (8/8/2Q5/4k3/2p3Rb/2p2K2/8/8 w - - 0 1)

Williams, Philip Hamilton

The Modern Chess Problem, 1912

8/8/2Q5/4k3/2p3Rb/2p2K2/8/8

#2

3 + 4

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Tries
    • 1.Rxh4?
      • 1...Kf5
        • 2.Rh5#
      • 1...c2!
    • 1.Rg5+?
      • 1...Kd4
        • 2.Rd5#
        • 2.Qe4#
        • 2.Qd5#
        • 2.Qd7#
        • 2.Qd6#
      • 1...Bxg5!
    • 1.Rg6?
      • threat
        • 2.Qe4#
        • 2.Qc5#
      • 1...Kd4
        • 2.Qd6#
      • 1...Kf5
        • 2.Qe4#
        • 2.Qe6#
      • 1...Bf2
        • 2.Qe4#
      • 1...Be7
        • 2.Qe4#
      • 1...Bf6!
  • Keys
    • 1.Rd4!
      • threat
        • 2.Rd5#
      • 1...Kxd4
        • 2.Qd6#
      • 1...Kf5
        • 2.Rd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(B);XB(c)
      • Vars
        • K(d);P-FLIGHT::R(B)
      • Refutation
        • P(a);
    • Try
      • R(B);CHECK
      • Refutation
        • B(c);XR(B)
    • Try
      • R(B);
      • Threat
        • DUALS(2)
      • Vars
        • K(d);S_FLIGHT::QAR2(C)
        • B(c);::QAR1(C)
      • Refutation
        • B(c);
  • Actual
    • R(B);
    • Threat
      • R1(B)
    • Vars
      • K(d);S_FLIGHT,XR(B)::QAR2(C)
      • K(d);P-FLIGHT::R(B)
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