MESON Chess Problem Database

Problem Display
PID: 152671 (8/1N1R4/7n/K1PPpp2/Q2bkp2/2R5/N7/1bB5 w - - 0 1)

Aliovsadzade, Rauf Gadzhiaga ogli

2nd Comm., Plyos-600 JT, 2010

8/1N1R4/7n/K1PPpp2/Q2bkp2/2R5/N7/1bB5

#2

9 + 7

145 StrateGems 2011
15148 Sadier Collection 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Bxa2
      • 2.Qc2#
    • 1...Bc2
      • 2.Qxc2#
  • Tries
    • 1.Rh3?
      • threat
        • 2.Sc3#
      • 1...Bxa2
        • 2.Qc2#
      • 1...f3!
    • 1.Qc4?
      • threat
        • 2.Sd6#
      • 1...Bd3
        • 2.Qxd3#
      • 1...Sf7!
  • Keys
    • 1.Qd1!
      • threat
        • 2.Qf3#
      • 1...Bxc3+
        • 2.Sxc3#
      • 1...Bxc5
        • 2.Sxc5#
      • 1...Bd3
        • 2.Qxd3#
      • 1...Bg1
        • 2.Sd6#
      • 1...Bf2
        • 2.Sd6#
      • 1...Be3
        • 2.Sd6#
      • 1...f3
        • 2.Qxf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 2
  • Sets
    • B(a);N_GUARD,XS(B)::QAB(D)
    • B(a);N_GUARD::QAB(D),XB(a)
  • Tries
    • Try
      • R(C);
      • Threat
        • S(B)
      • Vars
        • B(a);N_GUARD,XS(B)::QAB(D)
      • Refutation
        • P(d);
    • Try
      • Q(D);
      • Threat
        • S(H)
      • Vars
        • B(a);N_GUARD::QAB1(D),XB(a)
      • Refutation
        • S(g);
  • Actual
    • Q(D);N_PINB(b)
    • Threat
      • QAB1(D)
    • Vars
      • B(b);CHECK,XR(C)::S(B),XB(b)
      • B(b);XP(F)::S(H),XB(b)
      • B(a);N_GUARD::QAB1(D),XB(a)
      • B(b);::S(H)
      • P(d);::QAB1(D),XP(d)
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