MESON Chess Problem Database

Problem Display
PID: 11595 (2R4Q/1p4r1/4P3/3p4/2qP3n/PPkN1b1R/KN6/1BB5 w - - 0 1)

Ahues, Herbert Siegfried Oskar

2nd Prize, Vart Hem, 1939

2R4Q/1p4r1/4P3/3p4/2qP3n/PPkN1b1R/KN6/1BB5

#2

12 + 7

3098 FIDE Album (1914-1944) (I) 1971
15148 Sadier Collection 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Rg1
      • 2.Sa4#
    • 1...Rg3
      • 2.Sa4#
    • 1...Rg4
      • 2.Sa4#
    • 1...Rg5
      • 2.Sa4#
    • 1...Rg6
      • 2.Sa4#
    • 1...Rd7
      • 2.Sa4#
    • 1...Re7
      • 2.Sa4#
    • 1...Rf7
      • 2.Sa4#
    • 1...Rh7
      • 2.Sa4#
    • 1...Rg8
      • 2.Sa4#
  • Tries
    • 1.Sxc4?
      • threat
        • 2.Bb2#
      • 1...Rg2+
        • 2.Scb2#
        • 2.Sd2#
      • 1...dxc4
        • 2.Rxc4#
      • 1...Kxd4!
  • Keys
    • 1.Sf4!
      • threat
        • 2.Se2#
      • 1...Kxd4
        • 2.Qxg7#
      • 1...Rg2
        • 2.Sxd5#
      • 1...Rg3
        • 2.Sa4#
      • 1...Rc7
        • 2.Sd1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 9
  • Sets
    • R(g);::S(D)
  • Tries
    • Try
      • S(D);N_SPINP(F),XQ(c)
      • Threat
        • B(B)
      • Vars
        • P(e);OGATE,P_SPINP(e),XS(D)::R1(K),XP(e)
      • Refutation
        • K(a);P_SPINR(g),S_FLIGHT,XP(I)
  • Actual
    • S(G);P_PINB(b)
    • Threat
      • S(G)
    • Vars
      • K(a);N_SPINB(b),N_SPINQ(c),OGATEB,P_SPINR(g),S_FLIGHT,XP(I)::QAB(L),XR(g)
      • R(g);P_PINS(D)::S(G),XP(e)
      • R(g);N_SPINB(b)::S(D)
      • R(g);N_SPINQ(c)::S(D)
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