MESON Chess Problem Database

Problem Display
PID: 182288 (2R5/2Q5/2p5/2p5/2k5/2N5/2B5/2K5 w - - 0 1)

Spencer, George Burt

St. Paul's Dispatch, 1906

2R5/2Q5/2p5/2p5/2k5/2N5/2B5/2K5

#2

5 + 3

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Kb2?
      • threat
        • 2.Qf4#
      • 1...Kd4
        • 2.Qf4#
      • 1...Kb4!
    • 1.Kd2?
      • threat
        • 2.Qf4#
      • 1...Kd4
        • 2.Qf4#
      • 1...Kb4!
    • 1.Qb6?
      • 1...Kxc3
        • 2.Qxc5#
      • 1...Kd4!
    • 1.Qd6?
      • 1...Kxc3
        • 2.Qxc5#
      • 1...Kb4!
  • Keys
    • 1.Qxc6!
      • threat
        • 2.Qxc5#
      • 1...Kxc3
        • 2.Qxc5#
      • 1...Kb4
        • 2.Qxc5#
      • 1...Kd4
        • 2.Qxc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(A);S_FLIGHT
      • Threat
        • QAR(D)
      • Vars
        • K(a);P-FLIGHT::QAR2(D)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • K(A);S_FLIGHT
      • Threat
        • QAR(D)
      • Vars
        • K(a);P-FLIGHT::QAR2(D)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(D);
      • Vars
        • K(a);P-FLIGHT,XS(C)::QAR2(D),XP(b)
      • Refutation
        • K(a);P-FLIGHT,P_SPINP(b)
    • Try
      • Q(D);
      • Vars
        • K(a);P-FLIGHT,XS(C)::QAR2(D),XP(b)
      • Refutation
        • K(a);P-FLIGHT,P_SPINP(b)
  • Actual
    • Q(D);P_PINP(b),XP(c)
    • Threat
      • QAR1(D),XP(b)
    • Vars
      • K(a);P-FLIGHT,XS(C)::QAR2(D),XP(b)
      • K(a);N_SPINP(b),P-FLIGHT::QAB1(D),XP(b)
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