MESON Chess Problem Database

Problem Display
PID: 244789 (1Kn3B1/1R6/2k5/1NP1p3/1p2p3/8/2Q2r2/6Bb w - - 0 1)

Zalokotsky, Roman Fedorovich (aka Fedorovich, Roman)

Sachove umeni (Ceskoslovensky sach), 1976

1Kn3B1/1R6/2k5/1NP1p3/1p2p3/8/2Q2r2/6Bb

#2

7 + 7

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rg2
      • 2.Qxe4#
    • 1...Rf3
      • 2.Qxe4#
    • 1...Sb6
      • 2.Sa7#
    • 1...Sd6
      • 2.Sa7#
    • 1...Sa7
      • 2.Sxa7#
    • 1...Se7
      • 2.Sa7#
  • Tries
    • 1.Sc3?
      • threat
        • 2.Rc7#
      • 1...Kxc5
        • 2.Sb5#
      • 1...Rf7
        • 2.Qa4#
      • 1...bxc3!
    • 1.Bc4?
      • threat
        • 2.Rc7#
      • 1...Kxc5
        • 2.Ba2#
        • 2.Bb3#
        • 2.Be6#
        • 2.Bf7#
        • 2.Bg8#
      • 1...Rf7!
    • 1.Qxe4+?
      • 1...Kxc5
        • 2.Bxf2#
        • 2.Qc2#
        • 2.Qc4#
      • 1...Bxe4!
    • 1.Qc4?
      • threat
        • 2.Bd5#
        • 2.Rc7#
        • 2.Qd5#
      • 1...Rd2
        • 2.Rc7#
      • 1...Sb6
        • 2.Sa7#
        • 2.Rc7#
        • 2.cxb6#
      • 1...Se7
        • 2.Sa7#
        • 2.Rc7#
      • 1...e3
        • 2.Rc7#
      • 1...Rf7!
  • Keys
    • 1.Qa4!
      • threat
        • 2.Rc7#
      • 1...Kxc5
        • 2.Qc2#
      • 1...Rf7
        • 2.Sc3#
        • 2.Sc7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 6
  • Sets
    • R(b);S_CUTB(a)::QAB(B),XP(d)
    • S(g);N_GUARD::S(C)
    • S(g);N_GUARD::S(C),XS(g)
  • Tries
    • Try
      • S(C);
      • Threat
        • R1(E)
      • Vars
        • K(f);P-FLIGHT,P_SPINR(b),XP(D)::QAR(B)+S(C)
        • R(b);::QAB(B)
      • Refutation
        • P(c);XS(C)
    • Try
      • B(G);
      • Threat
        • R1(E)
      • Refutation
        • R(b);
    • Try
      • Q(B);CHECK,XP(d)
      • Refutation
        • B(a);XQ(B)
    • Try
      • Q(B);
      • Threat
        • DUALS(3)
      • Vars
        • R(b);::R1(E)
        • P(d);::R1(E)
      • Refutation
        • R(b);
  • Actual
    • Q(B);
    • Threat
      • R1(E)
    • Vars
      • K(f);OGATEB,P-FLIGHT,P_SPINR(b),XP(D)::QAR(B)
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