MESON Chess Problem Database

Problem Display
PID: 80493 (7Q/4p3/3p3B/2b2P2/1p2NPKp/n1P1k3/1Np4R/n6B w - - 0 1)

Aliovsadzade, Rauf Gadzhiaga ogli

Fomichev, Evgeny Vasilevich

StrateGems, 2008

7Q/4p3/3p3B/2b2P2/1p2NPKp/n1P1k3/1Np4R/n6B

#2

10 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Bd4
      • 2.Qxd4#
    • 1...bxc3
      • 2.Qxc3#
    • 1...e5
      • 2.fxe5#
  • Tries
    • 1.Sg3?
      • threat
        • 2.Sf1#
        • 2.Re2#
      • 1...c1Q
        • 2.Re2#
      • 1...c1S
        • 2.Sf1#
      • 1...c1R
        • 2.Re2#
      • 1...hxg3!
    • 1.Sxc5?
      • threat
        • 2.Qd4#
      • 1...bxc3
        • 2.Qxc3#
      • 1...dxc5
        • 2.Qe5#
      • 1...Sb5
        • 2.Sc4#
      • 1...e5
        • 2.fxe5#
      • 1...Sb3!
    • 1.Sf6?
      • threat
        • 2.Sd5#
      • 1...exf6
        • 2.Qe8#
      • 1...d5
        • 2.Sxd5#
      • 1...e6!
    • 1.Qe5?
      • threat
        • 2.Sxd6#
      • 1...dxe5
        • 2.fxe5#
      • 1...Bd4
        • 2.Qxd4#
      • 1...d5
        • 2.Sd2#
        • 2.Sg3#
        • 2.Sxc5#
        • 2.Sg5#
        • 2.Sd6#
        • 2.Sf6#
      • 1...Sc4!
  • Keys
    • 1.Sxd6!
      • threat
        • 2.Qe5#
      • 1...Bxd6
        • 2.Qd4#
      • 1...exd6
        • 2.Qe8#
      • 1...Bd4
        • 2.Qxd4#
      • 1...Sc4
        • 2.Sdxc4#
      • 1...e5
        • 2.Qxe5#
        • 2.fxe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • B(g);N_GUARD::QAB1(J),XB(g)
    • P(e);OGATE,XP(D)::QAR2(J),XP(e)
    • P(i);OGATE::B(I)+P(F),XP(i)
  • Tries
    • Try
      • S(E);
      • Threat
        • DUALS(2)
      • Vars
        • P(b);::R1(C)
        • P(b);::S(E)
      • Refutation
        • P(f);XS(E)
    • Try
      • S(E);XB(g)
      • Threat
        • QAB1(J)
      • Vars
        • P(e);OGATE,XP(D)::QAR2(J),XP(e)
        • P(h);N_GUARD,XS(E)::QAR2(J)
        • S(c);N_GUARD::S(B)
        • P(i);OGATE::B(I)+P(F),XP(i)
      • Refutation
        • S(a);
    • Try
      • S(E);
      • Threat
        • S(E)
      • Vars
        • P(i);OGATEB,XS(E)::QAR(J)
        • P(h);::S(E),XP(h)
      • Refutation
        • P(i);
    • Try
      • Q(J);
      • Threat
        • QAR(J)+S(E),XP(h)
      • Vars
        • P(h);OGATE,XQ(J)::B(I)+P(F),XP(h)
        • B(g);N_GUARD::QAB1(J),XB(g)
      • Refutation
        • S(c);
  • Actual
    • S(E);XP(h)
    • Threat
      • QAR2(J)
    • Vars
      • B(g);N_GUARD,XS(E)::QAB1(J)
      • P(i);OGATEB,XS(E)::QAR(J)
      • B(g);N_GUARD::QAB1(J),XB(g)
      • S(c);N_GUARD::S(E),XS(c)
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