MESON Chess Problem Database

Problem Display
PID: 193595 (8/8/1B6/8/4k3/3NpR2/4Q3/7K w - - 0 1)

Stubbs, Charles Francis

Chess Amateur (The), 1915

8/8/1B6/8/4k3/3NpR2/4Q3/7K

#2

5 + 2

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Tries
    • 1.Qc2?
      • 1...Kxf3
        • 2.Qg2#
      • 1...e2
        • 2.Qc6#
      • 1...Kd5!
  • Keys
    • 1.Qa2!
      • 1...Kxd3
        • 2.Rxe3#
      • 1...Kxf3
        • 2.Qg2#
      • 1...e2
        • 2.Qa8#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(B);N_PINP(a)
      • Vars
        • K(b);OGATEB,S_FLIGHT,XR(D)::QAB1(B)
        • P(a);::QAB(B)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • Q(B);N_PINP(a)
    • Vars
      • K(b);P_SPINP(a),S_FLIGHT,XS(C)::R1(D),XP(a)
      • K(b);OGATEB,S_FLIGHT,XR(D)::QAB1(B)
      • P(a);::QAB(B)
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