MESON Chess Problem Database

Problem Display
PID: 33 (4B1QK/8/8/8/n2k4/3NR3/3R4/8 w - - 0 1)

Theimer, Edgar

Theimer, Ernst

Cincinnati Enquirer, 1930

4B1QK/8/8/8/n2k4/3NR3/3R4/8

#2

6 + 2

3310 2345 Chess Problems 1997
14868 Pirnie Collection 2012

SOLUTION

  • SOUND
  • Tries
    • 1.Qc4+?
      • 1...Kxe3
        • 2.Qf4#
      • 1...Kxc4!
    • 1.Qg4+?
      • 1...Kc3
        • 2.Qb4#
      • 1...Kxe3
        • 2.Qf4#
      • 1...Kd5!
  • Keys
    • 1.Qf8!
      • 1...Kc3
        • 2.Qb4#
      • 1...Kxe3
        • 2.Qf4#
      • 1...Kc4
        • 2.Se5#
      • 1...Kd5
        • 2.Sb2#
      • 1...Sb2
        • 2.Qc5#
      • 1...Sc3
        • 2.Qc5#
      • 1...Sc5
        • 2.Qxc5#
      • 1...Sb6
        • 2.Qc5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(E);CHECK
      • Vars
        • K(b);OGATE,S_FLIGHT,XR(C)::QAB1(E)
      • Refutation
        • K(b);P-FLIGHT,XQ(E)
    • Try
      • Q(E);CHECK
      • Vars
        • K(b);OGATE,S_FLIGHT::QAB1(E)
        • K(b);S_FLIGHT,XR(C)::QAB1(E)
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • Q(E);
    • Vars
      • K(b);S_FLIGHT::QAB1(E)
      • K(b);S_FLIGHT,XR(C)::QAB1(E)
      • K(b);P-FLIGHT::S(B)
      • K(b);P-FLIGHT::R(A)+S(B)
      • S(a);N_GUARD::QAB1(E)
      • S(a);N_GUARD::QAB1(E),XS(a)
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