MESON Chess Problem Database

Problem Display
PID: 164593 (8/6pB/2p3Qn/1prp4/1PNk4/2p1pP2/2P1K3/4n3 w - - 0 1)

Valters, N

Sachmatija, 2007

8/6pB/2p3Qn/1prp4/1PNk4/2p1pP2/2P1K3/4n3

#2

7 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Rxc4
      • 2.Qxg7#
    • 1...Sxc2
      • 2.Qd3#
    • 1...Sg2
      • 2.Qd3#
    • 1...Sd3
      • 2.Qxd3#
    • 1...Sxf3
      • 2.Qd3#
    • 1...Sg4
      • 2.Qxg4#
    • 1...Sf5
      • 2.Qg4#
    • 1...Sf7
      • 2.Qg4#
    • 1...Sg8
      • 2.Qg4#
    • 1...bxc4
      • 2.Qxg7#
    • 1...dxc4
      • 2.Qe4#
  • Tries
    • 1.Kxe1?
      • threat
        • 2.Qd3#
      • 1...Rxc4
        • 2.Qxg7#
      • 1...bxc4
        • 2.Qxg7#
      • 1...dxc4
        • 2.Qe4#
      • 1...Sf5
        • 2.Qg4#
      • 1...Kxc4!
    • 1.Qd6?
      • threat
        • 2.Qf4#
        • 2.Qxc5#
      • 1...Kxc4
        • 2.Qxc5#
      • 1...Rxc4
        • 2.Qf4#
      • 1...bxc4
        • 2.Qf4#
      • 1...Sg2
        • 2.Qxc5#
      • 1...g5
        • 2.Qxc5#
      • 1...Sd3!
  • Keys
    • 1.Bg8!
      • 1...Kxc4
        • 2.Qe4#
      • 1...Rxc4
        • 2.Qxg7#
      • 1...Sxc2
        • 2.Qd3#
      • 1...Sxf3
        • 2.Qd3#
      • 1...Sxg8
        • 2.Qg4#
      • 1...bxc4
        • 2.Qxg7#
      • 1...dxc4
        • 2.Qe4#
      • 1...Sg2
        • 2.Qd3#
      • 1...Sd3
        • 2.Qxd3#
      • 1...Sg4
        • 2.Qxg4#
      • 1...Sf5
        • 2.Qg4#
      • 1...Sf7
        • 2.Qg4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • R(f);SBLOCK,XS(E)::QAB(F),XP(j)
    • S(a);N_GUARD,XP(A)::QAR1(F)
    • S(a);N_GUARD::QAR1(F)
    • S(a);N_GUARD::QAR1(F),XS(a)
    • S(a);N_GUARD,XP(C)::QAR1(F)
    • S(i);N_GUARD::QAR(F),XS(i)
    • S(i);N_GUARD::QAR(F)
    • P(e);SBLOCK,XS(E)::QAB(F),XP(j)
    • P(g);N_GUARD,SBLOCK,XS(E)::QAR1(F)
  • Tries
    • Try
      • K(B);P-FLIGHT,XS(a)
      • Threat
        • QAR1(F)
      • Vars
        • R(f);SBLOCK,XS(E)::QAB(F),XP(j)
        • P(e);SBLOCK,XS(E)::QAB(F),XP(j)
        • P(g);N_GUARD,SBLOCK,XS(E)::QAR1(F)
        • S(i);N_GUARD::QAR(F)
      • Refutation
        • K(d);P-FLIGHT,XS(E)
    • Try
      • Q(F);P_PINP(g)
      • Threat
        • DUALS(2)
      • Vars
        • K(d);N_SPINP(g),P-FLIGHT,XS(E)::QAR1(F),XR(f)
        • R(f);SBLOCK,XS(E)::QAR2(F)
        • P(e);SBLOCK,XS(E)::QAR2(F)
        • S(a);::QAB1(F),XR(f)
        • P(j);::QAB1(F),XR(f)
      • Refutation
        • S(a);
  • Actual
    • B(G);
    • Vars
      • K(d);P-FLIGHT,P_SPINP(g),XS(E)::QAR2(F)
      • R(f);SBLOCK,XS(E)::QAB(F),XP(j)
      • S(a);N_GUARD,XP(A)::QAR1(F)
      • S(a);N_GUARD,XP(C)::QAR1(F)
      • S(i);N_GUARD,XB(G)::QAR(F)
      • P(e);SBLOCK,XS(E)::QAB(F),XP(j)
      • P(g);N_GUARD,XS(E)::QAR1(F)
      • S(a);N_GUARD::QAR1(F)
      • S(a);N_GUARD::QAR1(F),XS(a)
      • S(i);N_GUARD::QAR(F),XS(i)
      • S(i);N_GUARD::QAR(F)
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