MESON Chess Problem Database

Problem Display
PID: 93526 (Q1B1n3/B5p1/2K2pP1/3RP3/2p1kp2/2p1P3/2P1N1P1/1n6 w - - 0 1)

Dombrovskis, Alfreds A

Atrkomponesanas, 1952

Q1B1n3/B5p1/2K2pP1/3RP3/2p1kp2/2p1P3/2P1N1P1/1n6

#2

11 + 8

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Sd2
      • 2.Sxc3#
    • 1...Sa3
      • 2.Sxc3#
    • 1...f3
      • 2.Sg3#
  • Tries
    • 1.Rd4+?
      • 1...Kxe5
        • 2.exf4#
      • 1...Kxe3!
    • 1.Rb5?
      • 1...fxe3
        • 2.Kb6#
      • 1...Sd2
        • 2.Sxc3#
      • 1...Sa3
        • 2.Sxc3#
      • 1...Sd6
        • 2.Kxd6#
      • 1...Sc7
        • 2.Kxc7#
      • 1...f3
        • 2.Sg3#
      • 1...f5
        • 2.Kd7#
      • 1...fxe5!
  • Keys
    • 1.Ra5!
      • 1...fxe3
        • 2.Kb6#
      • 1...fxe5
        • 2.Kb5#
      • 1...Sd2
        • 2.Sxc3#
      • 1...Sa3
        • 2.Sxc3#
      • 1...Sd6
        • 2.Kxd6#
      • 1...Sc7
        • 2.Kxc7#
      • 1...f3
        • 2.Sg3#
      • 1...f5
        • 2.Kd7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • S(a);N_GUARD::S(B),XP(b)
    • P(e);N_GUARD::S(B)
  • Tries
    • Try
      • R(E);CHECK
      • Vars
        • K(d);P-FLIGHT,XP(F)::P(D),XP(e)
      • Refutation
        • K(d);P-FLIGHT,XP(D)
    • Try
      • R(E);
      • Vars
        • P(e);SBLOCK,XP(D)::QAB(J)+K(G)
        • S(a);N_GUARD::S(B),XP(b)
        • S(h);::QAB(J)+K(G),XS(h)
        • P(e);N_GUARD::S(B)
        • P(f);SBLOCK::QAB(J)+K(G)
      • Refutation
        • P(f);XP(F)
  • Actual
    • R(E);
    • Vars
      • P(e);SBLOCK,XP(D)::QAB(J)+K(G)
      • P(f);SBLOCK,XP(F)::QAB(J)+K(G)
      • S(a);N_GUARD::S(B),XP(b)
      • S(h);::QAB(J)+K(G),XS(h)
      • P(e);N_GUARD::S(B)
      • P(f);SBLOCK::QAB(J)+K(G)
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