MESON Chess Problem Database

Problem Display
PID: 85853 (8/3p4/3P4/1B6/4knQ1/2P1N3/6P1/1K6 w - - 0 1)

Speckmann, Werner

Probleme, 1969

8/3p4/3P4/1B6/4knQ1/2P1N3/6P1/1K6

#2

7 + 3

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Kc1?
      • 1...Kxe3
        • 2.Qf3#
      • 1...Ke5!
    • 1.Kc2?
      • 1...Kxe3
        • 2.Qf3#
      • 1...Ke5!
    • 1.g3?
      • threat
        • 2.Qxf4#
      • 1...Kxe3
        • 2.Qxf4#
      • 1...Ke5!
  • Keys
    • 1.Sc4!
      • 1...Kd3
        • 2.Qf3#
      • 1...Kd5
        • 2.Qf5#

This is a version of 234514

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(A);P-FLIGHT
      • Vars
        • K(a);N_SPINS(b),P-FLIGHT,XS(D)::QAR1(E)
      • Refutation
        • K(a);N_SPINS(b),P-FLIGHT
    • Try
      • K(A);S_FLIGHT
      • Vars
        • K(a);N_SPINS(b),P-FLIGHT,XS(D)::QAR1(E)
      • Refutation
        • K(a);N_SPINS(b),P-FLIGHT
    • Try
      • P(B);
      • Threat
        • QAR1(E),XS(b)
      • Vars
        • K(a);N_SPINS(b),P-FLIGHT,XS(D)::QAB1(E),XS(b)
      • Refutation
        • K(a);N_SPINS(b),P-FLIGHT
  • Actual
    • S(D);
    • Vars
      • K(a);N_SPINS(b),S_FLIGHT::QAR2(E)
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