MESON Chess Problem Database

Problem Display
PID: 67646 (2QR1K1B/r1b1PN2/8/1pNP4/1pkP1P2/1p3r2/1P1nP2n/3R3B w - - 0 1)

Zalokotsky, Roman Fedorovich (aka Fedorovich, Roman)

Die Schwalbe, 1997

2QR1K1B/r1b1PN2/8/1pNP4/1pkP1P2/1p3r2/1P1nP2n/3R3B

#2

14 + 9

5418 FIDE Album (1995-1997) (Annexe) 2004

SOLUTION

  • SOUND
  • Sets
    • 1...Rf2
      • 2.Rc1#
    • 1...Rd3
      • 2.exd3#
    • 1...Rxf4
      • 2.Rc1#
  • Tries
    • 1.Se4?
      • threat
        • 2.Sxd2#
      • 1...Sxe4
        • 2.Se5#
      • 1...Rd3
        • 2.Sed6#
      • 1...Sb1
        • 2.Se5#
      • 1...Sdf1
        • 2.Se5#
      • 1...Shf1!
    • 1.Se6?
      • threat
        • 2.Se5#
      • 1...Rxf4
        • 2.Rc1#
      • 1...Re3
        • 2.Sd6#
      • 1...Sg4!
    • 1.Qxc7?
      • threat
        • 2.Sb7#
      • 1...Ra6
        • 2.Sxa6#
      • 1...Rb7
        • 2.Sxb7#
      • 1...Se4
        • 2.Se5#
      • 1...Rxc7!
  • Keys
    • 1.Sd3!
      • threat
        • 2.Rc1#
      • 1...Rxd3
        • 2.Sd6#
      • 1...Rf1
        • 2.Sd6#
      • 1...Ra1
        • 2.Qxc7#
      • 1...Sb1
        • 2.Sde5#
      • 1...Se4
        • 2.Sde5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 4
    • REMOVED MATES = 2
  • Sets
    • R(d);N_GUARD::R(A)
    • R(d);OGATE::P(D),XR(d)
    • R(d);N_GUARD,P_PINS(J),XP(F)::R(A)
  • Tries
    • Try
      • S(G);P_PINB(i)
      • Threat
        • S(G),XS(a)
      • Vars
        • S(a);XS(G)::S(J)
        • R(d);::S(G)
        • S(a);::S(J)
      • Refutation
        • S(b);
    • Try
      • S(G);P_PINB(i)
      • Threat
        • S(J)
      • Vars
        • R(d);N_GUARD,P_PINS(J),XP(F)::R(A)
        • R(d);::S(J)
      • Refutation
        • S(b);
    • Try
      • Q(K);XB(i)
      • Threat
        • QAR(K)+S(G)
      • Vars
        • R(h);N_GUARD::QAR(K)+S(G),XR(h)
        • R(h);::QAR(K)+S(G),XR(h)
        • S(a);::S(J)
      • Refutation
        • R(h);XQ(K)
  • Actual
    • S(G);P_PINB(i)
    • Threat
      • R(A)
    • Vars
      • R(d);XS(G)::S(J)
      • R(d);::S(J)
      • R(h);N_GUARD::QAR(K),XB(i)
      • S(a);::S(G)
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