MESON Chess Problem Database

Problem Display
PID: 233575 (7K/3p2NB/b2p3B/6p1/rn3P1R/3Pk1p1/1np1N1P1/b3Q3 w - - 0 1)

Witt, Andreas

Freie Presse, 2002

7K/3p2NB/b2p3B/6p1/rn3P1R/3Pk1p1/1np1N1P1/b3Q3

#2

10 + 11

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...gxf4
      • 2.Bxf4#
  • Keys
    • 1.fxg5!
      • threat
        • 2.Sc1#
        • 2.Sg1#
        • 2.Sc3#
        • 2.Sxg3#
        • 2.Sd4#
      • 1...Bxd3
        • 2.g6#
      • 1...S2xd3
        • 2.Re4#
      • 1...S4xd3
        • 2.Sf5#
      • 1...c1Q
        • 2.Sxc1#
      • 1...c1S
        • 2.Sxc1#
      • 1...c1B
        • 2.Sxc1#
        • 2.Sg1#
        • 2.Sc3#
        • 2.Sxg3#
        • 2.Sd4#
      • 1...c1R
        • 2.Sxc1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 1
  • Sets
    • P(h);OGATE,P_SPINP(h),XP(E)::B(G),XP(h)
  • Actual
    • P(E);XP(h)
    • Threat
      • DUALS(5)
    • Vars
      • B(i);SBLOCK,XP(D)::B(G)+P(E)
      • S(b);P_PINS(H),SBLOCK,XP(D)::R1(F)
      • S(g);SBLOCK,XP(D)::S(H)
      • P(c);::QAR(A)+S(B),XQ(c)
      • P(c);::QAR(A)+S(B),XS(c)
      • P(c);::QAR(A)+S(B),XR(c)
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