MESON Chess Problem Database

Problem Display
PID: 184036 (8/8/BBP5/pK1N1pp1/1pR5/2P3p1/r1PNkPPp/2Q3br w - - 0 1)

Guida, Marco

1/2 Prize, Wola Gulowska, 2013

8/8/BBP5/pK1N1pp1/1pR5/2P3p1/r1PNkPPp/2Q3br

#2

12 + 10

23 Die Schwalbe 2018

SOLUTION

  • SOUND
  • Sets
    • 1...bxc3
      • 2.Sxc3#
    • 1...f4
      • 2.Re4#
    • 1...g4
      • 2.Sf4#
  • Tries
    • 1.Rd4?
      • threat
        • 2.Qf1#
      • 1...Kxf2
        • 2.Qf1#
      • 1...Bxf2
        • 2.Kc5#
      • 1...Ra1!
    • 1.Rf4?
      • threat
        • 2.Kc5#
      • 1...gxf4
        • 2.Sxf4#
      • 1...Bxf2!
  • Keys
    • 1.Kc5!
      • threat
        • 2.Rf4#
      • 1...Bxf2+
        • 2.Rd4#
      • 1...Kxf2
        • 2.Qf1#
      • 1...f4
        • 2.Rxf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • P(g);XP(F)::S(I),XP(g)
    • P(i);N_GUARD::R(G)
    • P(j);N_GUARD::S(I)
  • Tries
    • Try
      • R(G);
      • Threat
        • QAB1(A)
      • Vars
        • K(d);P-FLIGHT,XP(D)::QAR1(A)
        • B(a);SBLOCK,XP(D)::B(J)+K(H)
      • Refutation
        • R(c);
    • Try
      • R(G);
      • Threat
        • B(J)+K(H)
      • Vars
        • P(j);XR(G)::S(I),XP(j)
      • Refutation
        • B(a);XP(D)
  • Actual
    • K(H);P-FLIGHT,P_SPINP(D)
    • Threat
      • B(J)+R(G)
    • Vars
      • B(a);CHECK,SBLOCK,XP(D)::B(J)+R(G)
      • K(d);P-FLIGHT,XP(D)::QAR1(A)
      • P(i);::B(J)+R(G),XP(i)
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