MESON Chess Problem Database

Problem Display
PID: 190110 (1Q2b3/4kp2/R1p2R2/p4n1P/B4PN1/K7/8/8 w - - 0 1)

von Sponer, Gyorgy Janos Andor

Pesti Naplo, 1913

1Q2b3/4kp2/R1p2R2/p4n1P/B4PN1/K7/8/8

#2

8 + 6

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Kd7
      • 2.Ra7#
    • 1...Se3
      • 2.Qd6#
    • 1...Sg3
      • 2.Qd6#
    • 1...Sd4
      • 2.Qd6#
    • 1...Sh4
      • 2.Qd6#
    • 1...Sd6
      • 2.Qxd6#
    • 1...Sh6
      • 2.Qd6#
    • 1...Sg7
      • 2.Qd6#
    • 1...c5
      • 2.Qxe8#
  • Tries
    • 1.Ra8?
      • threat
        • 2.Qxe8#
      • 1...Kd7
        • 2.Ra7#
        • 2.Qa7#
        • 2.Qb7#
        • 2.Qd8#
      • 1...Bd7
        • 2.Qd8#
        • 2.Qf8#
      • 1...Sd6
        • 2.Qxd6#
      • 1...Sg7
        • 2.Qd6#
      • 1...Kf8!
  • Keys
    • 1.Sh6!
      • 1...Kxf6
        • 2.Qe5#
      • 1...Kd7
        • 2.Ra7#
      • 1...Kf8
        • 2.Rxf7#
      • 1...Sxh6
        • 2.Qd6#
      • 1...Bd7
        • 2.Sg8#
      • 1...Se3
        • 2.Qd6#
      • 1...Sg3
        • 2.Qd6#
      • 1...Sd4
        • 2.Qd6#
      • 1...Sh4
        • 2.Qd6#
      • 1...Sd6
        • 2.Qxd6#
      • 1...Sg7
        • 2.Qd6#
      • 1...c5
        • 2.Qxe8#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(d);P-FLIGHT,P_SPINP(c)::R(F)
    • S(b);N_GUARD::QAB1(H)
    • S(b);N_GUARD::QAB1(H),XS(b)
    • P(c);::QAR1(H),XB(f)
  • Tries
    • Try
      • R(F);
      • Threat
        • QAR1(H),XB(f)
      • Vars
        • S(b);N_GUARD::QAB1(H),XS(b)
        • S(b);N_GUARD::QAB1(H)
      • Refutation
        • K(d);P_SPINB(f),P_SPINP(e),S_FLIGHT
  • Actual
    • S(D);
    • Vars
      • K(d);P_SPINP(c),S_FLIGHT,XR(G)::QAB1(H)
      • K(d);P-FLIGHT,P_SPINP(c)::R(F)
      • K(d);P_SPINB(f),P_SPINP(e),S_FLIGHT::R1(G),XP(e)
      • S(b);N_GUARD,XS(D)::QAB1(H)
      • B(f);SBLOCK::S(D)
      • S(b);N_GUARD::QAB1(H)
      • S(b);N_GUARD::QAB1(H),XS(b)
      • P(c);::QAR1(H),XB(f)
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