MESON Chess Problem Database

Problem Display
PID: 222814 (3R1rq1/4p3/3bkp2/1P4p1/1pKP4/1B5P/8/1Q6 w - - 0 1)

Grotjan, TJ

Baltimore American and Commercial Advertiser, 1884

3R1rq1/4p3/3bkp2/1P4p1/1pKP4/1B5P/8/1Q6

#2

7 + 8

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Bh2
      • 2.Kxb4#
      • 2.Kc5#
    • 1...Bg3
      • 2.Kxb4#
      • 2.Kc5#
    • 1...Bf4
      • 2.Kxb4#
      • 2.Kc5#
    • 1...Bc5
      • 2.Kxc5#
    • 1...Be5
      • 2.Kxb4#
      • 2.Kc5#
    • 1...Bc7
      • 2.Kxb4#
      • 2.Kc5#
    • 1...Bb8
      • 2.Kxb4#
      • 2.Kc5#
  • Tries
    • 1.Qe4+?
      • 1...Be5
        • 2.Kd3#
        • 2.Kxb4#
        • 2.Kc5#
      • 1...Kf7!
  • Keys
    • 1.Kd3+!
      • 1...Kf5
        • 2.Ke3#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • B(c);::B(B)+K(D),XB(c)
  • Tries
    • Try
      • Q(A);CHECK
      • Refutation
        • K(d);S_FLIGHT
  • Actual
    • K(D);CHECK,S_FLIGHT
    • Vars
      • K(d);S_FLIGHT::QAB(A)+K(D)
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