MESON Chess Problem Database

Problem Display
PID: 70090 (1B1Q4/3p1b2/2rpkrp1/b1p2p2/5p2/1qR2N1K/B1N5/3R4 w - - 0 1)

Aliovsadzade, Rauf Gadzhiaga ogli

1/2 Prize, Azerbaijan CCC-35 JT, 2006

1B1Q4/3p1b2/2rpkrp1/b1p2p2/5p2/1qR2N1K/B1N5/3R4

#2

8 + 12

145 StrateGems 2006
15148 Sadier Collection 2015

SOLUTION

  • SOUND
  • Sets
    • 1...Qd5
      • 2.Bxd5#
      • 2.Re1#
    • 1...Rc8
      • 2.Rxd6#
    • 1...Be8
      • 2.Qxe8#
    • 1...Bg8
      • 2.Qe8#
    • 1...d5
      • 2.Sg5#
      • 2.Re1#
  • Tries
    • 1.Bxb3+?
      • 1...d5
        • 2.Sg5#
        • 2.Bxd5#
        • 2.Re1#
      • 1...c4!
    • 1.Bxd6?
      • threat
        • 2.Sg5#
        • 2.Qe7#
      • 1...Bxd8
        • 2.Sg5#
      • 1...Qd5
        • 2.Qe7#
      • 1...g5
        • 2.Sxg5#
        • 2.Qe7#
      • 1...Rxd6!
  • Keys
    • 1.Rxc5!
      • threat
        • 2.Sd4#
      • 1...Rxc5
        • 2.Rxd6#
      • 1...Bxd8
        • 2.Re1#
      • 1...dxc5
        • 2.Qxd7#
      • 1...Be8
        • 2.Qxe8#
      • 1...Bg8
        • 2.Qe8#
      • 1...Bc3
        • 2.Sg5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • R(f);N_GUARD::R1(A),XP(g)
    • B(l);N_GUARD::QAR2(H),XB(l)
    • B(l);N_GUARD::QAR2(H)
  • Tries
    • Try
      • B(B);CHECK,XQ(a)
      • Refutation
        • P(d);P_SPINP(d)
    • Try
      • B(G);XP(g)
      • Threat
        • DUALS(2)
      • Vars
        • B(c);XQ(H)::S(E)
        • Q(a);::QAR1(H)
      • Refutation
        • R(f);XB(G)
  • Actual
    • R(D);P_SPINS(E),XP(d)
    • Threat
      • S(C)
    • Vars
      • R(f);N_GUARD,XR(D)::R1(A),XP(g)
      • B(c);N_GUARD,XQ(H)::R(A)
      • P(g);XR(D)::QAB1(H),XP(k)
      • B(l);N_GUARD::QAR2(H),XB(l)
      • B(l);N_GUARD::QAR2(H)
      • B(c);N_PINS(E)::S(E)
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