MESON Chess Problem Database

Problem Display
PID: 23841 (K3B3/2bp1Qp1/1pPpnp1r/1n1k4/1P1P4/3PR3/4N3/2R4b w - - 0 1)

Buglos, Janos

Molnar, Arpad

Probleemblad, 1997

K3B3/2bp1Qp1/1pPpnp1r/1n1k4/1P1P4/3PR3/4N3/2R4b

#2

10 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Be4
      • 2.dxe4#
    • 1...Sxd4
      • 2.Sf4#
    • 1...f5
      • 2.Qxf5#
    • 1...dxc6
      • 2.Bxc6#
      • 2.Qxe6#
  • Tries
    • 1.Bxd7?
      • threat
        • 2.Bxe6#
        • 2.Qxe6#
      • 1...Sxd4
        • 2.Sc3#
        • 2.Sf4#
      • 1...Sc3
        • 2.Qxe6#
      • 1...f5
        • 2.Qxf5#
      • 1...Rh8+!
    • 1.cxd7?
      • threat
        • 2.Qxe6#
      • 1...Sxd4
        • 2.Sf4#
      • 1...Be4
        • 2.dxe4#
      • 1...f5
        • 2.Qxf5#
      • 1...Sc3!
  • Keys
    • 1.Qxd7!
      • threat
        • 2.Qxe6#
      • 1...Sbxd4
        • 2.Sc3#
      • 1...Sexd4
        • 2.Sf4#
      • 1...Be4
        • 2.dxe4#
      • 1...Sf4
        • 2.Qf5#
      • 1...Sc5
        • 2.Qf5#
      • 1...Sg5
        • 2.Qf5#
      • 1...Sd8
        • 2.Qf5#
      • 1...Sf8
        • 2.Qf5#
      • 1...f5
        • 2.Re5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • B(a);OGATE::P(C),XB(a)
    • S(b);SBLOCK,XP(F)::S(B)
    • P(g);OGATE::QAR2(H),XP(g)
  • Tries
    • Try
      • B(J);XP(j)
      • Threat
        • DUALS(2)
      • Vars
        • S(b);::QAB1(H),XS(f)
        • P(g);OGATE::QAR2(H),XP(g)
      • Refutation
        • R(h);CHECK
    • Try
      • P(G);XP(j)
      • Threat
        • QAB1(H),XS(f)
      • Vars
        • S(b);SBLOCK,XP(F)::S(B)
        • B(a);OGATE::P(C),XB(a)
        • P(g);OGATE::QAR2(H),XP(g)
      • Refutation
        • S(b);
  • Actual
    • Q(H);N_PINS(f),P_PINP(e),XP(j)
    • Threat
      • QAB1(H),XS(f)
    • Vars
      • S(b);N_GUARD,SBLOCK,XP(F)::S(B)
      • S(f);N_GUARD,SBLOCK,XP(F)::S(B)
      • B(a);OGATE::P(C),XB(a)
      • S(f);OGATE::QAR2(H)
      • P(g);N_GUARD::R1(D)
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