MESON Chess Problem Database

Problem Display
PID: 159473 (8/K3N3/3Rp3/1pk1P3/5pp1/P3Nn1Q/4B3/1r2B3 w - - 0 1)

Akchurin, Mikhail

Revista Romana de Sah, 1982

8/K3N3/3Rp3/1pk1P3/5pp1/P3Nn1Q/4B3/1r2B3

#2

9 + 7

15148 Sadier Collection 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Ra1
      • 2.Bb4#
    • 1...Rc1
      • 2.Bb4#
    • 1...Rd1
      • 2.Bb4#
    • 1...Rb4
      • 2.Bxb4#
      • 2.axb4#
  • Tries
    • 1.Sc2?
      • threat
        • 2.Rc6#
      • 1...Sd4
        • 2.Qc3#
      • 1...Sxe5!
    • 1.Bc3?
      • threat
        • 2.Rc6#
      • 1...Sd4
        • 2.Bxd4#
      • 1...Sxe5!
    • 1.Qh8?
      • threat
        • 2.Qc8#
      • 1...Sxe5
        • 2.Qxe5#
      • 1...Sd4!
  • Keys
    • 1.S3f5!
      • threat
        • 2.Rc6#
      • 1...Sxe5
        • 2.Bf2#
      • 1...exf5
        • 2.Rd5#
      • 1...Sd4
        • 2.Qc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 3
  • Sets
    • R(a);N_GUARD,P_PINP(C)::B(A)
    • R(a);N_GUARD::B(A)
  • Tries
    • Try
      • S(D);
      • Threat
        • R1(G)
      • Vars
        • S(b);OGATE::QAR2(E)
      • Refutation
        • S(b);XP(F)
    • Try
      • B(A);
      • Threat
        • R1(G)
      • Vars
        • S(b);N_GUARD::B(A),XS(b)
      • Refutation
        • S(b);XP(F)
    • Try
      • Q(E);
      • Threat
        • QAR(E)
      • Vars
        • S(b);OGATE,XP(F)::QAR2(E),XS(b)
      • Refutation
        • S(b);
  • Actual
    • S(D);
    • Threat
      • R1(G)
    • Vars
      • S(b);N_GUARD,XP(F)::B(A)
      • P(g);N_GUARD,XS(D)::R1(G)
      • S(b);OGATE::QAR2(E)
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