MESON Chess Problem Database

Problem Display
PID: 50312 (8/rp1N4/1R1pN3/3k1B2/2p5/1p3P1r/3PKP1b/3Q4 w - - 0 1)

Aliovsadzade, Rauf Gadzhiaga ogli

2nd Comm., StrateGems, 2001

8/rp1N4/1R1pN3/3k1B2/2p5/1p3P1r/3PKP1b/3Q4

#2

9 + 8

145 StrateGems 2003

SOLUTION

  • SOUND
  • Sets
    • 1...c3
      • 2.Qxb3#
  • Tries
    • 1.Sf4+?
      • 1...Kd4
        • 2.Rxd6#
      • 1...Bxf4!
    • 1.d4?
      • threat
        • 2.Sc7#
        • 2.Sf6#
      • 1...cxd4 ep+
        • 2.Qxd3#
      • 1...c3
        • 2.Qxb3#
      • 1...Rh6
        • 2.Sc7#
      • 1...Be5
        • 2.Sc7#
        • 2.dxe5#
      • 1...Ra2+!
    • 1.f4?
      • threat
        • 2.Sf6#
      • 1...Re3+
        • 2.dxe3#
      • 1...c3
        • 2.Qxb3#
      • 1...Rh6
        • 2.Qh1#
      • 1...Bxf4!
  • Keys
    • 1.Ke3!
      • threat
        • 2.Sc7#
      • 1...Rxf3+
        • 2.Qxf3#
      • 1...Bf4+
        • 2.Sxf4#
      • 1...c3
        • 2.Qxb3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • P(d);OGATEB::QAB(A),XP(b)
  • Tries
    • Try
      • S(H);CHECK
      • Vars
        • K(e);P-FLIGHT::R(G),XP(f)
      • Refutation
        • B(a);XS(H)
    • Try
      • P(B);
      • Threat
        • DUALS(2)
      • Vars
        • P(d);CHECK,EP,OGATEB,P_SPINP(d),XP(B)::QAR2(A),XP(d)
        • P(d);OGATEB::QAB(A),XP(b)
        • R(c);::S(H)
      • Refutation
        • R(g);CHECK
    • Try
      • P(E);
      • Threat
        • S(I)
      • Vars
        • R(c);CHECK,OGATE::QAR(A)+P(B),XR(c)
        • P(d);OGATEB::QAB(A),XP(b)
        • R(c);N_GUARD::QAB(A)
      • Refutation
        • B(a);XP(E)
  • Actual
    • K(C);P-FLIGHT,P_SPINP(E)
    • Threat
      • S(H)
    • Vars
      • R(c);CHECK,OGATE,XP(E)::QAB(A),XR(c)
      • B(a);CHECK,N_GUARD::S(H),XB(a)
      • P(d);OGATEB::QAB(A),XP(b)
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