MESON Chess Problem Database

Problem Display
PID: 240577 (1b5B/1B4qp/8/2pPr3/r2kN3/p1p3RQ/P3R3/7K w - - 0 1)

Cristoffanini, Guido

Shakhmaty i Shashki, 1931

1b5B/1B4qp/8/2pPr3/r2kN3/p1p3RQ/P3R3/7K

#2

9 + 9

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rc4
      • 2.Rd3#
  • Keys
    • 1.Rg4!
      • threat
        • 2.Qxc3#
      • 1...Kc4
        • 2.Sd6#
      • 1...Qxb7
        • 2.Sxc3#
      • 1...Rxe4
        • 2.Rexe4#
        • 2.Rgxe4#
      • 1...Rh5
        • 2.Sd6#
      • 1...Qh6
        • 2.Sg5#
      • 1...Rc4
        • 2.Qe3#
      • 1...c2
        • 2.Qc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • R(c);SBLOCK::R1(D)
  • Actual
    • R(D);
    • Threat
      • QAB1(E),XP(b)
    • Vars
      • K(d);P-FLIGHT::R(D)+S(F),DCHECK
      • Q(g);N_GUARD,P_SPINR(f),XB(H)::R(D)+S(F),XP(b)
      • R(f);N_GUARD,P_PINQ(E),P_SPINQ(g)::R(D)+S(F)
      • Q(g);P_PINQ(E),P_SPINR(f)::R(D)+S(F)
      • R(c);SBLOCK::QAB1(E)
      • P(b);::QAB1(E)
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