MESON Chess Problem Database

Problem Display
PID: 184861 (7K/p7/1p3R2/3kp2p/3B3r/1P3P2/8/6Q1 w - - 0 1)

Jewetsky, Feodor Orestovich

125 Shakhmaty Zadachi (Eventski), 1908

7K/p7/1p3R2/3kp2p/3B3r/1P3P2/8/6Q1

#2

6 + 6

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...exd4
      • 2.Qg5#
  • Tries
    • 1.Bxb6?
      • threat
        • 2.Qc5#
        • 2.Qg8#
      • 1...e4
        • 2.Qd4#
        • 2.Qc5#
        • 2.Qg5#
      • 1...Rc4
        • 2.Qg8#
      • 1...Rd4
        • 2.Qg8#
      • 1...Rg4
        • 2.Qc5#
      • 1...axb6!
  • Keys
    • 1.Qc1!
      • threat
        • 2.Qc4#
      • 1...Kxd4
        • 2.Rd6#
      • 1...Rxd4
        • 2.Qc6#
      • 1...exd4
        • 2.Qg5#
      • 1...b5
        • 2.Qc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • P(c);OGATEB,SBLOCK,XB(D)::QAR(A)
  • Tries
    • Try
      • B(D);XP(e)
      • Threat
        • DUALS(2)
      • Vars
        • R(a);::QAB(A)
        • R(a);::QAR1(A)
      • Refutation
        • P(f);XB(D)
  • Actual
    • Q(A);
    • Threat
      • QAB1(A)
    • Vars
      • K(b);P-FLIGHT,XB(D)::R(E)
      • R(a);SBLOCK,XB(D)::QAB1(A)
      • P(c);OGATEB,SBLOCK,XB(D)::QAR(A)
      • P(e);N_GUARD::QAR1(A)
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