MESON Chess Problem Database

Problem Display
PID: 92010 (bb4QK/3pR2B/r4p2/1p1PPP2/4k3/1R2B3/4r3/n3N3 w - - 0 1)

Pospisil, Josef

Deutsche Schachbund, 1910

bb4QK/3pR2B/r4p2/1p1PPP2/4k3/1R2B3/4r3/n3N3

#2

10 + 9

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rxe1
      • 2.Qg2#
    • 1...Rg2
      • 2.Qxg2#
    • 1...Rxe3
      • 2.Rb4#
    • 1...Rd6
      • 2.exd6#
    • 1...Bxd5
      • 2.Qg4#
    • 1...Bd6
      • 2.exd6#
    • 1...fxe5
      • 2.f6#
    • 1...d6
      • 2.exd6#
      • 2.exf6#
  • Keys
    • 1.d6!
      • threat
        • 2.exf6#
      • 1...Rxe1
        • 2.Qg2#
      • 1...Rxe3
        • 2.Rb4#
      • 1...Rxd6
        • 2.exd6#
      • 1...Bxd6
        • 2.exd6#
      • 1...fxe5
        • 2.f6#
      • 1...Bd5
        • 2.Qg4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 1
  • Sets
    • R(b);N_GUARD,XS(A)::QAB(I)
    • R(b);N_GUARD::QAB(I),XR(b)
    • R(b);SBLOCK,XB(C)::R(B)
    • R(e);OGATE::R(G)+P(E),XR(e)
    • B(h);SBLOCK,XP(D)::QAR2(I)
    • B(i);OGATE::R(G)+P(E),XB(i)
    • P(f);OGATE,P_SPINP(f),XP(E)::B(H)+P(F)
  • Actual
    • P(D);
    • Threat
      • R(G)+P(E),XP(f)
    • Vars
      • R(b);N_GUARD,XS(A)::QAB(I)
      • R(b);SBLOCK,XB(C)::R(B)
      • R(e);OGATE,XP(D)::R(G)+P(E),XR(e)
      • B(i);OGATE,XP(D)::R(G)+P(E),XB(i)
      • P(f);OGATE,P_SPINP(f),XP(E)::B(H)+P(F)
      • B(h);SBLOCK::QAR2(I)
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