MESON Chess Problem Database

Problem Display
PID: 198388 (8/B2pnK2/3PN3/1P1pk1pn/2PRq1P1/Qp2R3/4BP2/b7 w - - 0 1)

Meschick, AG

Brisbane Courier, 1920

8/B2pnK2/3PN3/1P1pk1pn/2PRq1P1/Qp2R3/4BP2/b7

#2

12 + 9

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Bxd4
      • 2.Bxd4#
    • 1...Sf5
      • 2.Rxd5#
    • 1...Sc6
      • 2.Rxd5#
    • 1...Sg6
      • 2.Rxd5#
    • 1...Sc8
      • 2.Rxd5#
    • 1...Sg8
      • 2.Rxd5#
    • 1...dxc4
      • 2.Rexe4#
  • Keys
    • 1.Sc5!
      • threat
        • 2.Sd3#
      • 1...Kxd4
        • 2.Sxd7#
      • 1...Kf4
        • 2.Sd3#
      • 1...Kxd6
        • 2.Bb8#
      • 1...Qxe3
        • 2.Sxd7#
      • 1...dxc4
        • 2.Rexe4#
      • 1...Sf4
        • 2.Sxd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 6
  • Sets
    • B(a);OGATE,XR(F)::B(K),XB(a)
    • S(i);N_GUARD::R1(F),XP(d)
    • P(d);N_GUARD,XP(E)::R1(D),XQ(c)
  • Actual
    • S(J);
    • Threat
      • S(J)
    • Vars
      • K(e);N_SPINQ(c),S_FLIGHT,XR(F)::B(K)+S(J),XP(h)
      • K(e);S_FLIGHT::S(J)
      • K(e);N_SPINQ(c),OGATEB,P_SPINP(d),S_FLIGHT,XP(I)::B(K)
      • Q(c);N_SPINQ(c),XR(D)::S(J),XP(h)
      • P(d);N_GUARD,XP(E)::R1(D),XQ(c)
      • S(g);SBLOCK::S(J),XP(h)
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