MESON Chess Problem Database

Problem Display
PID: 174835 (1Br4n/3PRp2/3Qnp2/4Np2/3pkb1R/KN2p3/2PrB1P1/3b1q2 w - - 0 1)

Barth, Michael

Schach, 2006

1Br4n/3PRp2/3Qnp2/4Np2/3pkb1R/KN2p3/2PrB1P1/3b1q2

#2

11 + 13

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Qf3
      • 2.gxf3#
    • 1...Rd3
      • 2.cxd3#
    • 1...Rc6
      • 2.Qxc6#
    • 1...Rd8
      • 2.Qc6#
    • 1...Re8
      • 2.Qc6#
    • 1...Rf8
      • 2.Qc6#
    • 1...Rg8
      • 2.Qc6#
    • 1...Sc7
      • 2.Sc5#
    • 1...fxe5
      • 2.Qxe5#
  • Tries
    • 1.Sd3?
      • threat
        • 2.Qxd4#
      • 1...Rxd3
        • 2.cxd3#
      • 1...Rc4!
    • 1.Sf3?
      • threat
        • 2.Rxf4#
      • 1...Qxf3
        • 2.gxf3#
      • 1...Sg6!
    • 1.dxc8Q?
      • threat
        • 2.Qb7#
        • 2.Qdc6#
        • 2.Qcc6#
      • 1...Sc5
        • 2.Sxc5#
        • 2.Qdc6#
        • 2.Qcc6#
      • 1...Sc7
        • 2.Sc5#
      • 1...Sd8
        • 2.Sc5#
      • 1...Rxc2!
    • 1.dxc8S?
      • threat
        • 2.Qc6#
      • 1...Sc7
        • 2.Sc5#
      • 1...Sd8
        • 2.Sc5#
      • 1...Rxc2!
    • 1.dxc8B?
      • threat
        • 2.Bb7#
        • 2.Qc6#
      • 1...Sc5
        • 2.Sxc5#
        • 2.Qc6#
      • 1...Sc7
        • 2.Sc5#
      • 1...Sd8
        • 2.Sc5#
      • 1...Rxc2!
    • 1.dxc8R?
      • threat
        • 2.Qc6#
      • 1...Sc7
        • 2.Sc5#
      • 1...Sd8
        • 2.Sc5#
      • 1...Rxc2!
  • Keys
    • 1.Sc6!
      • threat
        • 2.Sc5#
      • 1...Rxc2
        • 2.Qxd4#
      • 1...Rxc6
        • 2.Qxc6#
      • 1...Rd3
        • 2.cxd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 7
  • Sets
    • Q(b);OGATE::P(C),XQ(b)
    • R(c);OGATE,P_PINS(E)::P(A),XR(c)
    • R(l);N_GUARD::QAB(H),XR(l)
    • R(l);N_GUARD::QAB(H)
    • S(i);N_GUARD,S_CUTR(l)::S(E)
    • P(j);OGATE,XS(G)::QAR1(H),XP(j)
  • Tries
    • Try
      • S(G);P_PINS(i)
      • Threat
        • QAR1(H),XP(e)
      • Vars
        • R(c);OGATE,P_PINS(E),XS(G)::P(A),XR(c)
      • Refutation
        • R(l);
    • Try
      • S(G);P_PINS(i)
      • Threat
        • R1(F),XB(g)
      • Vars
        • Q(b);OGATE,XS(G)::P(C),XQ(b)
      • Refutation
        • S(m);
    • Try
      • P(I);XR(l)
      • Threat
        • DUALS(3)
      • Vars
        • S(i);N_GUARD::S(E)
      • Refutation
        • R(c);XP(A)
    • Try
      • P(I);XR(l)
      • Threat
        • QAB(H)
      • Vars
        • S(i);N_GUARD::S(E)
      • Refutation
        • R(c);XP(A)
    • Try
      • P(I);XR(l)
      • Threat
        • DUALS(2)
      • Vars
        • S(i);N_GUARD::S(E)
      • Refutation
        • R(c);XP(A)
    • Try
      • P(I);XR(l)
      • Threat
        • QAB(H)
      • Vars
        • S(i);N_GUARD::S(E)
      • Refutation
        • R(c);XP(A)
  • Actual
    • S(G);P_PINS(i)
    • Threat
      • S(E)
    • Vars
      • R(c);N_GUARD,XP(A)::QAR1(H),XP(e)
      • R(l);OGATE,XS(G)::QAB(H),XR(l)
      • R(c);OGATE,P_PINS(E)::P(A),XR(c)
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