MESON Chess Problem Database

Problem Display
PID: 64776 (3K3b/1p2N3/pQ1pp1B1/BR5r/P1kpP2r/1N2n2R/4P3/5n1b w - - 0 1)

Erokhin, Vladimir Alekseevich

2nd HM., Schach-Echo, 1981

3K3b/1p2N3/pQ1pp1B1/BR5r/P1kpP2r/1N2n2R/4P3/5n1b

#2

11 + 12

3752 FIDE Album (1980-1982) 1988

SOLUTION

  • SOUND
  • Sets
    • 1...Re5
      • 2.Qxd4#
    • 1...Rh6
      • 2.Qc7#
    • 1...Rh7
      • 2.Qc7#
    • 1...Be5
      • 2.Qc7#
    • 1...Sd2
      • 2.Sxd2#
    • 1...Sh2
      • 2.Sd2#
    • 1...Sg3
      • 2.Sd2#
    • 1...Sd1
      • 2.Rb4#
    • 1...Sg2
      • 2.Rb4#
    • 1...Sg4
      • 2.Rb4#
    • 1...Sf5
      • 2.Rb4#
      • 2.Qc7#
    • 1...d5
      • 2.Rc5#
      • 2.Qc5#
      • 2.Qc7#
    • 1...e5
      • 2.Qc7#
  • Tries
    • 1.Rc5+?
      • 1...Rxc5
        • 2.Qb4#
      • 1...dxc5!
    • 1.Rd5?
      • threat
        • 2.Qb4#
      • 1...Sc2
        • 2.Qc7#
      • 1...Sxd5!
    • 1.Rf5?
      • threat
        • 2.Qb4#
      • 1...Sc2
        • 2.Qc7#
      • 1...Sd5!
    • 1.Rg5?
      • threat
        • 2.Qb4#
      • 1...Sc2
        • 2.Qc7#
      • 1...Sd5!
    • 1.Rxh5?
      • threat
        • 2.Qb4#
      • 1...Sc2
        • 2.Qc7#
      • 1...Sd5!
    • 1.e5?
      • threat
        • 2.Bd3#
      • 1...axb5
        • 2.Qxb5#
      • 1...Re4
        • 2.Qc7#
      • 1...Be4
        • 2.Qxd4#
      • 1...Sf5
        • 2.Rb4#
      • 1...d3
        • 2.Bxd3#
        • 2.exd3#
      • 1...Rf5!
  • Keys
    • 1.Re5!
      • threat
        • 2.Qb4#
      • 1...Sc2
        • 2.Qc7#
      • 1...Sd5
        • 2.Qxd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 11
  • Sets
    • R(g);S_CUTB(l)::QAR1(H),XP(e)
    • R(g);N_GUARD::QAR(H)
    • B(l);S_CUTR(g)::QAR(H)
    • S(a);N_GUARD::S(B),XS(a)
    • S(a);N_GUARD::S(B)
    • S(c);::R1(G)
    • P(j);S_CUTR(g)::QAR(H)
  • Tries
    • Try
      • R(G);CHECK
      • Vars
        • R(g);XR(G)::QAR1(H)
      • Refutation
        • P(i);XR(G)
    • Try
      • R(G);
      • Threat
        • QAR1(H)
      • Vars
        • S(c);::QAR(H)
      • Refutation
        • S(c);XR(G)
    • Try
      • R(G);
      • Threat
        • QAR1(H)
      • Vars
        • S(c);::QAR(H)
      • Refutation
        • S(c);
    • Try
      • R(G);
      • Threat
        • QAR1(H)
      • Vars
        • S(c);::QAR(H)
      • Refutation
        • S(c);
    • Try
      • R(G);XR(g)
      • Threat
        • QAR1(H)
      • Vars
        • S(c);::QAR(H)
      • Refutation
        • S(c);
    • Try
      • P(E);
      • Threat
        • B(I)
      • Vars
        • P(h);OGATE,XR(G)::QAB1(H),XP(h)
        • R(f);S_CUTB(b)::QAR(H)
        • B(b);S_CUTR(f)::QAR1(H),XP(e)
        • S(c);::R1(G)
      • Refutation
        • R(g);
  • Actual
    • R(G);
    • Threat
      • QAR1(H)
    • Vars
      • S(c);::QAR(H)
      • S(c);::QAR1(H),XP(e)
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