MESON Chess Problem Database

Problem Display
PID: 86158 (KBR5/5R2/8/1p1NP3/3k1p1p/4Npp1/2Bpp1n1/5n1Q w - - 0 1)

Vladimirov, Viacheslav Semenovich

Sinfonie Scacchistiche, 1970

KBR5/5R2/8/1p1NP3/3k1p1p/4Npp1/2Bpp1n1/5n1Q

#2

9 + 10

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Sh2
      • 2.Qa1#
    • 1...Se1
      • 2.Rxf4#
    • 1...b4
      • 2.Rc4#
  • Tries
    • 1.Sc3?
      • threat
        • 2.Sf5#
      • 1...Kxe3
        • 2.Ba7#
      • 1...Sgxe3
        • 2.Rxf4#
      • 1...fxe3
        • 2.Rd7#
      • 1...Sfxe3!
    • 1.Sb6?
      • threat
        • 2.Sf5#
      • 1...Sfxe3
        • 2.Qa1#
      • 1...Sgxe3
        • 2.Rxf4#
      • 1...fxe3
        • 2.Rd7#
      • 1...Kxe3!
    • 1.Sf6?
      • threat
        • 2.Sf5#
      • 1...Kxe3
        • 2.Ba7#
      • 1...Sfxe3
        • 2.Qa1#
      • 1...fxe3
        • 2.Rd7#
      • 1...Sgxe3!
    • 1.Se7?
      • threat
        • 2.S3f5#
        • 2.S7f5#
      • 1...Kxe3
        • 2.Ba7#
      • 1...Sfxe3
        • 2.Qa1#
      • 1...Sgxe3
        • 2.Rxf4#
      • 1...fxe3!
    • 1.Rd7?
      • threat
        • 2.Sf5#
      • 1...Sfxe3
        • 2.Qa1#
      • 1...fxe3
        • 2.Sc3#
        • 2.Sb4#
        • 2.Sf4#
        • 2.Sb6#
        • 2.Sf6#
        • 2.Se7#
      • 1...Sgxe3!
  • Keys
    • 1.Sb4!
      • threat
        • 2.Sf5#
      • 1...Kxe3
        • 2.Ba7#
      • 1...Sfxe3
        • 2.Qa1#
      • 1...Sgxe3
        • 2.Rxf4#
      • 1...fxe3
        • 2.Rd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 3
  • Sets
    • S(a);OGATE::QAB(A)
    • S(d);N_GUARD::R(F),XP(h)
    • P(j);N_GUARD::R1(I)
  • Tries
    • Try
      • S(D);
      • Threat
        • S(C)
      • Vars
        • K(g);S_FLIGHT,XS(C)::B(H)
        • S(d);N_GUARD,SBLOCK,XS(C)::R(F),XP(h)
        • P(h);SBLOCK,XS(C)::R(F)
      • Refutation
        • S(a);XS(C)
    • Try
      • S(D);
      • Threat
        • S(C)
      • Vars
        • S(a);OGATE,SBLOCK,XS(C)::QAB(A)
        • S(d);N_GUARD,SBLOCK,XS(C)::R(F),XP(h)
        • P(h);SBLOCK,XS(C)::R(F)
      • Refutation
        • K(g);S_FLIGHT,XS(C)
    • Try
      • S(D);
      • Threat
        • S(C)
      • Vars
        • K(g);S_FLIGHT,XS(C)::B(H)
        • S(a);OGATE,SBLOCK,XS(C)::QAB(A)
        • P(h);SBLOCK,XS(C)::R(F)
      • Refutation
        • S(d);XS(C)
    • Try
      • S(D);
      • Threat
        • DUALS(2)
      • Vars
        • K(g);S_FLIGHT,XS(C)::B(H)
        • S(a);OGATE,SBLOCK,XS(C)::QAB(A)
        • S(d);N_GUARD,SBLOCK,XS(C)::R(F),XP(h)
      • Refutation
        • P(h);XS(C)
    • Try
      • R(F);
      • Threat
        • S(C)
      • Vars
        • S(a);OGATE,XS(C)::QAB(A)
      • Refutation
        • S(d);XS(C)
  • Actual
    • S(D);
    • Threat
      • S(C)
    • Vars
      • K(g);S_FLIGHT,XS(C)::B(H)
      • S(a);OGATE,SBLOCK,XS(C)::QAB(A)
      • S(d);N_GUARD,SBLOCK,XS(C)::R(F),XP(h)
      • P(h);SBLOCK,XS(C)::R(F)
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