MESON Chess Problem Database

Problem Display
PID: 208030 (8/8/8/1Rp5/2P1k2p/7P/3K1B2/5Q2 w - - 0 1)

Blood, Charles H

Dubuque Chess Journal, 1873

8/8/8/1Rp5/2P1k2p/7P/3K1B2/5Q2

#2

6 + 3

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Be1?
      • 1...Kd4
        • 2.Qf4#
      • 1...Ke5!
    • 1.Bg3?
      • threat
        • 2.Qd3#
        • 2.Qf4#
      • 1...Kd4
        • 2.Qd3#
        • 2.Qf4#
      • 1...hxg3!
    • 1.Bxh4?
      • 1...Kd4
        • 2.Qf4#
      • 1...Ke5!
  • Keys
    • 1.Bd4!
      • 1...Kxd4
        • 2.Qf4#
      • 1...cxd4
        • 2.Qf5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(C);
      • Vars
        • K(a);P-FLIGHT::QAR2(A)
      • Refutation
        • K(a);P-FLIGHT,P_SPINP(c)
    • Try
      • B(C);
      • Threat
        • DUALS(2)
      • Refutation
        • P(b);XB(C)
    • Try
      • B(C);XP(b)
      • Vars
        • K(a);P-FLIGHT::QAR2(A)
      • Refutation
        • K(a);P-FLIGHT,P_SPINP(c)
  • Actual
    • B(C);
    • Vars
      • K(a);P-FLIGHT,XB(C)::QAR2(A)
      • P(c);SBLOCK,XB(C)::QAB1(A)
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