MESON Chess Problem Database

Problem Display
PID: 242762 (b1r4r/2p3R1/Qpk2n2/P2N4/3PP3/B1nK3p/p5R1/7B w - - 0 1)

Bakcsi, Gyorgy

Sinfonie Scacchistiche, 1979

b1r4r/2p3R1/Qpk2n2/P2N4/3PP3/B1nK3p/p5R1/7B

#2

10 + 10

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rb8
      • 2.Rxc7#
    • 1...Rcd8
      • 2.Rxc7#
    • 1...Rce8
      • 2.Rxc7#
    • 1...Rcf8
      • 2.Rxc7#
    • 1...Rcg8
      • 2.Rxc7#
    • 1...Bb7
      • 2.Qc4#
    • 1...Sd7
      • 2.Se7#
  • Tries
    • 1.Sxb6?
      • threat
        • 2.Sa4#
        • 2.Sc4#
        • 2.Sd5#
        • 2.Sd7#
        • 2.Sxa8#
        • 2.Sxc8#
      • 1...Scxe4
        • 2.Rc2#
      • 1...Sfxe4
        • 2.R2g6#
      • 1...cxb6
        • 2.Qc4#
        • 2.Qxb6#
      • 1...Rcd8
        • 2.Sa4#
        • 2.Sc4#
        • 2.Sd5#
        • 2.Sd7#
        • 2.Sxa8#
        • 2.Sc8#
      • 1...Rce8
        • 2.Sa4#
        • 2.Sc4#
        • 2.Sd5#
        • 2.Sd7#
        • 2.Sxa8#
        • 2.Sc8#
      • 1...Rcf8
        • 2.Sa4#
        • 2.Sc4#
        • 2.Sd5#
        • 2.Sd7#
        • 2.Sxa8#
        • 2.Sc8#
      • 1...Rcg8
        • 2.Sa4#
        • 2.Sc4#
        • 2.Sd5#
        • 2.Sd7#
        • 2.Sxa8#
        • 2.Sc8#
      • 1...Bb7
        • 2.Qc4#
      • 1...Sa4
        • 2.Sxa4#
      • 1...Scd5
        • 2.Sxd5#
      • 1...Sfd5
        • 2.Sxd5#
      • 1...Sd7
        • 2.Sxd7#
      • 1...Rb8!
    • 1.Qxa8+?
      • 1...Kb5
        • 2.Sxc3#
      • 1...Rxa8!
  • Keys
    • 1.e5!
      • threat
        • 2.Sb4#
      • 1...Kxd5
        • 2.Qc4#
      • 1...Scxd5
        • 2.Rc2#
      • 1...Sfxd5
        • 2.R2g6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 7
  • Sets
    • R(i);N_GUARD::R1(J),XP(g)
    • B(h);SBLOCK::QAR2(I)
    • S(f);SBLOCK::S(H)
  • Tries
    • Try
      • S(H);XP(d)
      • Threat
        • DUALS(6)
      • Vars
        • S(b);OGATEB,XP(F)::R(B)
        • S(f);OGATEB,XP(F)::R(B)
        • B(h);SBLOCK::QAR2(I)
        • S(b);::QAR(I)+S(H),XS(b)
        • S(f);::QAR(I)+S(H),XS(f)
      • Refutation
        • R(i);
    • Try
      • Q(I);CHECK,N_PINP(d),XB(h)
      • Vars
        • K(e);S_FLIGHT::S(H),XS(b)
      • Refutation
        • R(i);XQ(I)
  • Actual
    • P(F);
    • Threat
      • S(H)
    • Vars
      • K(e);N_SPINP(d),S_FLIGHT,XS(H)::QAB1(I)
      • S(b);OGATEB,XS(H)::R(B)
      • S(f);OGATEB,XS(H)::R(B)
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