MESON Chess Problem Database

Problem Display
PID: 68282 (8/2p2Q2/2pP1P2/KNkp4/p6R/3p4/2P1N3/3r4 w - - 0 1)

Simadhinata, Januarta (Siem Giok Liam)

The Problemist Supplement, 2006

8/2p2Q2/2pP1P2/KNkp4/p6R/3p4/2P1N3/3r4

#2

8 + 7

102 Probleemblad 2014

SOLUTION

  • SOUND
  • Sets
    • 1...d4
      • 2.Rh5#
    • 1...cxb5
      • 2.Qxc7#
    • 1...cxd6
      • 2.Qa7#
  • Tries
    • 1.Sec3?
      • threat
        • 2.Sxa4#
      • 1...cxb5
        • 2.Qxd5#
        • 2.Qxc7#
      • 1...a3
        • 2.Sa4#
      • 1...Ra1!
    • 1.Sed4?
      • threat
        • 2.Se6#
      • 1...Kc4
        • 2.Sb3#
      • 1...cxb5
        • 2.Qxc7#
      • 1...Re1!
    • 1.Rc4+?
      • 1...dxc4
        • 2.Qh5#
      • 1...Kxc4!
    • 1.Qe7?
      • threat
        • 2.dxc7#
        • 2.d7#
      • 1...cxb5
        • 2.Qxc7#
      • 1...cxd6
        • 2.Qxd6#
        • 2.Qa7#
      • 1...d4!
    • 1.dxc7?
      • threat
        • 2.Qe7#
        • 2.Qf8#
      • 1...d4
        • 2.Rh5#
      • 1...cxb5!
    • 1.d7?
      • threat
        • 2.Qe7#
        • 2.Qf8#
      • 1...d4
        • 2.Rh5#
      • 1...cxb5!
  • Keys
    • 1.Sf4!
      • threat
        • 2.Se6#
      • 1...Kc4
        • 2.Sxd3#
      • 1...cxb5
        • 2.Qxd5#
      • 1...Re1
        • 2.Sxd3#
      • 1...d4
        • 2.Rh5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • P(e);OGATEB::R(C)
    • P(f);OGATEB,XS(E)::QAR2(H),XP(g)
    • P(g);OGATE,XP(F)::QAB(H)
  • Tries
    • Try
      • S(B);
      • Threat
        • S(B),XP(c)
      • Vars
        • P(c);::S(B)
      • Refutation
        • R(a);
    • Try
      • S(B);
      • Threat
        • S(B)
      • Vars
        • K(d);P-FLIGHT,P_SPINP(e)::R(C)+S(B)
        • P(f);OGATEB,XS(E)::QAR2(H),XP(g)
      • Refutation
        • R(a);
    • Try
      • R(C);CHECK
      • Vars
        • P(e);SBLOCK,XR(C)::QAR(H)
      • Refutation
        • K(d);P-FLIGHT,P_SPINP(e),XR(C)
    • Try
      • Q(H);
      • Threat
        • DUALS(2)
      • Vars
        • P(f);OGATEB,XS(E)::QAR2(H),XP(g)
      • Refutation
        • P(e);
    • Try
      • P(F);XP(g)
      • Threat
        • DUALS(2)
      • Vars
        • P(e);OGATEB::R(C)
      • Refutation
        • P(f);XS(E)
    • Try
      • P(F);
      • Threat
        • DUALS(2)
      • Vars
        • P(e);OGATEB::R(C)
      • Refutation
        • P(f);XS(E)
  • Actual
    • S(B);
    • Threat
      • S(B)
    • Vars
      • K(d);P-FLIGHT,P_SPINP(e)::R(C)+S(B),XP(b)
      • P(f);N_GUARD,XS(E)::QAR1(H),XP(e)
      • R(a);N_GUARD::S(B),XP(b)
      • P(e);OGATEB::R(C)
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