MESON Chess Problem Database

Problem Display
PID: 21544 (2KR4/b5Q1/8/np1PN3/r2kN3/r2p2p1/3B4/4R3 w - - 0 1)

Goethart, Gerhardus Hendrik

3rd Prize, Hampshire Telegraph and Post, 1916-1919

2KR4/b5Q1/8/np1PN3/r2kN3/r2p2p1/3B4/4R3

#2

8 + 8

3360 Simple Two-move Themes 1924
5501 Chess Cameos 1936
3098 FIDE Album (1914-1944) (I) 1971
56 The Problemist 2006

SOLUTION

  • SOUND
  • Sets
    • 1...Ra1
      • 2.Bc3#
    • 1...Ra2
      • 2.Bc3#
    • 1...Rc3+
      • 2.Bxc3#
    • 1...Rc4+
      • 2.Sc6#
    • 1...Sb3
      • 2.Bc3#
    • 1...Sc4
      • 2.Sf3#
      • 2.Sc6#
    • 1...Sc6
      • 2.dxc6#
  • Tries
    • 1.Qc7?
      • threat
        • 2.Sf3#
      • 1...Sc6
        • 2.dxc6#
      • 1...Bc5!
  • Keys
    • 1.Sc5!
      • threat
        • 2.Se6#
      • 1...Kxc5
        • 2.Qxa7#
      • 1...Bxc5
        • 2.Qg4#
      • 1...Rc3
        • 2.Be3#
      • 1...Rc4
        • 2.Sxd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 2
    • REMOVED MATES = 4
  • Sets
    • R(a);N_GUARD::B(B)
    • R(a);CHECK,N_GUARD::B(B),XR(a)
    • R(d);CHECK,SBLOCK::QAB(F)+S(E),DCHECK
    • S(f);S_CUTR(a)::B(B)
    • S(f);OGATE::R(H)+P(D),XS(f)
  • Tries
    • Try
      • Q(F);
      • Threat
        • S(E)
      • Vars
        • S(f);OGATE::R(H)+P(D),XS(f)
      • Refutation
        • B(h);
  • Actual
    • S(C);
    • Threat
      • S(C)
    • Vars
      • K(e);OGATEB,S_FLIGHT,XS(C)::QAB(F),XB(h)
      • B(h);SBLOCK,XS(C)::QAR(F)
      • R(a);P_PINS(C),SBLOCK::B(B)
      • R(d);P_PINS(C),SBLOCK::QAB(F)+S(E),XP(b)
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