MESON Chess Problem Database

Problem Display
PID: 175722 (8/4B1p1/Q7/4R3/3k4/1p4N1/7b/3K4 w - - 0 1)

Dutschke, Rudolf

Deutsches Wochenschach, 1898

8/4B1p1/Q7/4R3/3k4/1p4N1/7b/3K4

#2

5 + 4

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Kxe5
      • 2.Qd6#
  • Tries
    • 1.Bc5+?
      • 1...Kxe5
        • 2.Qd6#
      • 1...Kc3!
    • 1.Re4+?
      • 1...Kd5
        • 2.Qc4#
        • 2.Qb5#
        • 2.Qb7#
        • 2.Qd6#
        • 2.Qe6#
        • 2.Qa8#
      • 1...Kc3!
    • 1.Qd3+?
      • 1...Kxe5
        • 2.Qe4#
        • 2.Qd6#
      • 1...Kxd3!
    • 1.Qc4+?
      • 1...Kxe5
        • 2.Qe4#
      • 1...Kxc4!
  • Keys
    • 1.Ba3!
      • threat
        • 2.Bb2#
      • 1...Kc3
        • 2.Se2#
      • 1...Kxe5
        • 2.Qd6#
      • 1...b2
        • 2.Bxb2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(c);S_FLIGHT,XR(C)::QAB1(D)
  • Tries
    • Try
      • B(E);CHECK
      • Vars
        • K(c);S_FLIGHT,XR(C)::QAB1(D)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • R(C);CHECK
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(D);CHECK
      • Refutation
        • K(c);P-FLIGHT,XQ(D)
    • Try
      • Q(D);CHECK
      • Vars
        • K(c);OGATE,S_FLIGHT,XR(C)::QAR1(D)
      • Refutation
        • K(c);P-FLIGHT,XQ(D)
  • Actual
    • B(E);
    • Threat
      • B(E)
    • Vars
      • K(c);S_FLIGHT::S(B)
      • K(c);S_FLIGHT,XR(C)::QAB1(D)
      • P(b);::B(E),XP(b)
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