MESON Chess Problem Database

Problem Display
PID: 101519 (3b3R/4pBP1/4P3/5kN1/3Bpp1n/3r2QK/3qpR1n/5r1N w - - 0 1)

Guidelli, Giorgio

Good Companions (July), 1917

3b3R/4pBP1/4P3/5kN1/3Bpp1n/3r2QK/3qpR1n/5r1N

#2

10 + 11

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...S2f3
      • 2.Qg4#
    • 1...e3
      • 2.Qxf4#
    • 1...f3
      • 2.Qe5#
  • Keys
    • 1.Rh5!
      • threat
        • 2.Sf3#
        • 2.Sh7#
      • 1...Rxg3+
        • 2.Sxg3#
      • 1...Rxd4
        • 2.Sh7#
      • 1...Rf3
        • 2.Sxf3#
        • 2.Sh7#
      • 1...S2f3
        • 2.Sxf3#
        • 2.Qg4#
      • 1...S4f3
        • 2.Sxf3#
      • 1...e3
        • 2.Qxf4#
      • 1...f3
        • 2.Qe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • S(d);N_PINQ(C),N_SPINP(g)::QAB1(C)
    • P(f);N_PINQ(C)::QAR1(C),XP(g)
    • P(g);N_PINQ(C)::QAR1(C)
  • Actual
    • R(J);
    • Threat
      • DUALS(2)
    • Vars
      • R(e);CHECK,XQ(C)::S(A),XR(e)
      • R(e);N_PINQ(C),XB(E)::R(J)+S(F)
      • S(h);N_PINQ(C),N_SPINP(g)::R(J)+S(F),XS(h)
      • P(f);N_PINQ(C)::QAR1(C),XP(g)
      • P(g);N_PINQ(C)::QAR1(C)
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