MESON Chess Problem Database

Problem Display
PID: 102292 (8/4K3/2p5/P2kp2Q/1p1p2P1/1P1p2P1/3P4/8 w - - 0 1)

Giobel, Bengt Rudolf

Dagens Nyheter, 1931

8/4K3/2p5/P2kp2Q/1p1p2P1/1P1p2P1/3P4/8

#2

7 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Ke4
      • 2.Qh1#
    • 1...Kc5
      • 2.Qxe5#
  • Tries
    • 1.Kd7?
      • 1...Ke4
        • 2.Qh1#
      • 1...Kc5
        • 2.Qxe5#
      • 1...c5!
    • 1.Qf7+?
      • 1...Kc5
        • 2.Qc4#
      • 1...Ke4!
    • 1.Qe8?
      • 1...Ke4
        • 2.Qxc6#
      • 1...c5
        • 2.Qa8#
      • 1...e4
        • 2.Qh5#
      • 1...Kc5!
    • 1.Qh1+?
      • 1...e4
        • 2.Qh5#
      • 1...Kc5!
    • 1.Qf5?
      • 1...Kc5
        • 2.Qxe5#
      • 1...c5!
  • Keys
    • 1.Qh8!
      • 1...Ke4
        • 2.Qh1#
      • 1...Kc5
        • 2.Qxe5#
      • 1...c5
        • 2.Qa8#
      • 1...e4
        • 2.Qh5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(d);N_SPINP(e),S_FLIGHT::QAB(F)
    • K(d);P-FLIGHT::QAR2(F),XP(e)
  • Tries
    • Try
      • K(G);P-FLIGHT
      • Vars
        • K(d);N_SPINP(e),S_FLIGHT::QAB(F)
        • K(d);P-FLIGHT::QAR2(F),XP(e)
      • Refutation
        • P(f);
    • Try
      • Q(F);CHECK,N_PINP(e)
      • Vars
        • K(d);OGATE,P-FLIGHT::QAR1(F)
      • Refutation
        • K(d);S_FLIGHT
    • Try
      • Q(F);N_PINP(e)
      • Vars
        • K(d);S_FLIGHT::QAB(F),XP(f)
        • P(f);OGATEB,SBLOCK::QAB(F)
        • P(e);OGATEB,SBLOCK::QAR(F)
      • Refutation
        • K(d);P-FLIGHT
    • Try
      • Q(F);CHECK,N_PINP(e)
      • Vars
        • P(e);OGATEB,P_SPINP(e),SBLOCK::QAR(F)
      • Refutation
        • K(d);P-FLIGHT
    • Try
      • Q(F);
      • Vars
        • K(d);P-FLIGHT::QAR2(F),XP(e)
      • Refutation
        • P(f);
  • Actual
    • Q(F);N_PINP(e)
    • Vars
      • K(d);S_FLIGHT::QAB(F)
      • K(d);P-FLIGHT::QAR2(F),XP(e)
      • P(f);OGATEB,SBLOCK::QAB(F)
      • P(e);OGATEB,SBLOCK::QAR(F)
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Developed and maintained by Brian Stephenson.
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