MESON Chess Problem Database

Problem Display
PID: 215972 (6b1/1R6/1K1ppN2/5n2/3k4/8/8/b3QB2 w - - 0 1)

Witt, Andreas

Badische Neueste Nachrichten, 1998

6b1/1R6/1K1ppN2/5n2/3k4/8/8/b3QB2

#2

5 + 6

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Bc3
      • 2.Qe4#
    • 1...Se3
      • 2.Qxa1#
    • 1...e5
      • 2.Qd2#
  • Tries
    • 1.Kc6?
      • threat
        • 2.Rb4#
      • 1...Se3
        • 2.Qxa1#
      • 1...Bc3
        • 2.Qe4#
      • 1...e5
        • 2.Qd2#
      • 1...Se7+!
    • 1.Rc7?
      • threat
        • 2.Rc4#
        • 2.Qe4#
      • 1...Se3
        • 2.Qxa1#
      • 1...Sg3
        • 2.Rc4#
      • 1...e5
        • 2.Qd2#
        • 2.Qe4#
      • 1...d5!
  • Keys
    • 1.Ra7!
      • threat
        • 2.Ra4#
      • 1...Se3
        • 2.Qxa1#
      • 1...Bc3
        • 2.Qe4#
      • 1...e5
        • 2.Qd2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • B(a);SBLOCK::QAR1(A)
    • S(c);SBLOCK::QAB(A),XB(a)
    • P(e);SBLOCK::QAR2(A)
  • Tries
    • Try
      • K(C);P-FLIGHT
      • Threat
        • R(E)
      • Vars
        • S(c);SBLOCK::QAB(A),XB(a)
        • B(a);SBLOCK::QAR1(A)
        • P(e);SBLOCK::QAR2(A)
      • Refutation
        • S(c);CHECK
    • Try
      • R(E);
      • Threat
        • DUALS(2)
      • Vars
        • S(c);SBLOCK::QAB(A),XB(a)
        • S(c);::R1(E)
      • Refutation
        • P(d);
  • Actual
    • R(E);
    • Threat
      • R(E)
    • Vars
      • S(c);SBLOCK::QAB(A),XB(a)
      • B(a);SBLOCK::QAR1(A)
      • P(e);SBLOCK::QAR2(A)
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