MESON Chess Problem Database

Problem Display
PID: 21070 (2KB4/1R6/p5pP/4bkNb/2Q4P/1R5P/r1q2N2/1Bn5 w - - 0 1)

Guidelli, Giorgio

2nd Prize=, Good Companions (November Pageant Ty.), 1916

2KB4/1R6/p5pP/4bkNb/2Q4P/1R5P/r1q2N2/1Bn5

#2

11 + 8

3132 The Good Companion Two-Mover 1922
4035 Aarsskrift for DSK 1934
3098 FIDE Album (1914-1944) (I) 1971
56 The Problemist 2005

SOLUTION

  • SOUND
  • Sets
    • 1...Qe4
      • 2.Qxe4#
    • 1...Bg4
      • 2.hxg4#
  • Tries
    • 1.Bxc2+?
      • 1...Sd3
        • 2.Bxd3#
        • 2.Qe4#
      • 1...Rxc2!
    • 1.Rf3+?
      • 1...Bf4
        • 2.Qc5#
      • 1...Bxf3!
  • Keys
    • 1.Sg4!
      • threat
        • 2.Se3#
      • 1...Bxg4
        • 2.hxg4#
      • 1...Qe4
        • 2.Qxe4#
      • 1...Bd4
        • 2.Rf3#
      • 1...Ba1
        • 2.Rf3#
      • 1...Bb2
        • 2.Rf3#
      • 1...Bh2
        • 2.Rf7#
      • 1...Bc3
        • 2.Qf1#
      • 1...Bg3
        • 2.Rf7#
      • 1...Bf4
        • 2.Rf7#
      • 1...Bd6
        • 2.Rf7#
      • 1...Bf6
        • 2.Rf3#
      • 1...Bc7
        • 2.Qf7#
      • 1...Bg7
        • 2.Rf3#
      • 1...Bb8
        • 2.Rf7#
      • 1...Bh8
        • 2.Rf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 13
    • REMOVED MATES = 0
  • Sets
    • Q(c);N_PINQ(E)::QAB1(E),XQ(c)
    • B(f);OGATE::P(D),XB(f)
  • Tries
    • Try
      • B(A);CHECK,N_SPINQ(E),XQ(c)
      • Refutation
        • R(b);P_PINQ(E),XB(A)
    • Try
      • R(C);CHECK
      • Vars
        • B(d);P_SPINB(d),S_CUTB(f)::QAR(E)
      • Refutation
        • B(f);XR(C)
  • Actual
    • S(B);
    • Threat
      • S(B)
    • Vars
      • B(f);OGATE,XS(B)::P(D),XB(f)
      • Q(c);N_PINQ(E)::QAB1(E),XQ(c)
      • B(d);N_GUARD::R(C)
      • B(d);N_GUARD::R(I)
      • B(d);N_PINQ(E)::QAR(E)
      • B(d);N_PINQ(E)::QAR2(E)
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