MESON Chess Problem Database

Problem Display
PID: 6298 (bR3B2/2pkN3/8/2pr1NK1/8/4R2B/8/3Q3n w - - 0 1)

Isaev, Leonid Antonovich

3rd Prize, Pewarta Soerabaja, 1928

bR3B2/2pkN3/8/2pr1NK1/8/4R2B/8/3Q3n

#2

8 + 6

35 L'Italia Scacchistica 1930
2048 Tuxens skakopgaver (Leif C Schmidt) 1984

SOLUTION

  • SOUND
  • Sets
    • 1...Rd6
      • 2.Sg3#
      • 2.Sh4#
      • 2.Sxd6#
      • 2.Sh6#
      • 2.Sg7#
  • Tries
    • 1.Qa4+?
      • 1...Bc6
        • 2.Qxc6#
      • 1...c6!
  • Keys
    • 1.Sc6!
      • threat
        • 2.Qxd5#
      • 1...Kxc6
        • 2.Qa4#
      • 1...Rxd1
        • 2.Sfd4#
      • 1...Bxc6
        • 2.Re7#
      • 1...Rd2
        • 2.Sfd4#
      • 1...Rd3
        • 2.Sfd4#
      • 1...Rd4
        • 2.Sfxd4#
      • 1...Rd6
        • 2.Sfe7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);CHECK,N_PINR(c)
      • Vars
        • B(f);N_GUARD,P_SPINB(f)::QAB1(A),XB(f)
      • Refutation
        • P(d);P_SPINP(d)
  • Actual
    • S(F);
    • Threat
      • QAR2(A),XR(c)
    • Vars
      • K(e);N_SPINR(c),OGATEB,S_FLIGHT,XS(F)::QAB(A)
      • R(c);N_PINS(D),N_SPINR(c),XQ(A)::B(C)+S(D)
      • B(f);SBLOCK,XS(F)::R1(B)
      • R(c);N_PINS(D)::B(C)+S(D)
      • R(c);N_PINS(D)::B(C)+S(D),XR(c)
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