MESON Chess Problem Database

Problem Display
PID: 11853 (8/2pp4/1bPQ2nK/1ppN1N2/1Bk2pR1/3pP3/P7/1R1q1n2 w - - 0 1)

Goldschmeding, Cornelis

1st HM., Schakend Nederland, 1972

8/2pp4/1bPQ2nK/1ppN1N2/1Bk2pR1/3pP3/P7/1R1q1n2

#2

10 + 11

3753 FIDE Album (1971-1973) 1978
273 Mat Plus 1994

SOLUTION

  • SOUND
  • Sets
    • 1...Qb3
      • 2.axb3#
    • 1...Qf3
      • 2.Rc1#
    • 1...Qxg4
      • 2.Rc1#
    • 1...Qc1
      • 2.Rxc1#
    • 1...Ba5
      • 2.Qxc5#
    • 1...Sxe3
      • 2.Sdxe3#
    • 1...Sh4
      • 2.Rxf4#
    • 1...Se5
      • 2.Rxf4#
    • 1...Se7
      • 2.Rxf4#
    • 1...Sf8
      • 2.Rxf4#
    • 1...Sh8
      • 2.Rxf4#
    • 1...cxb4
      • 2.Rxb4#
    • 1...cxd6
      • 2.Sxb6#
  • Tries
    • 1.Qxf4+?
      • 1...Kxd5
        • 2.Qe4#
      • 1...Sxf4!
  • Keys
    • 1.Sxf4!
      • threat
        • 2.Qd5#
      • 1...Qxb1
        • 2.Sxg6#
      • 1...Sxe3
        • 2.Sxe3#
      • 1...Sxf4
        • 2.Rxf4#
      • 1...cxb4
        • 2.Qxb4#
      • 1...cxd6
        • 2.Sxd6#
      • 1...dxc6
        • 2.Qe6#
      • 1...Qb3
        • 2.Sxg6#
      • 1...Qf3
        • 2.Qxd3#
      • 1...Se7
        • 2.Se2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 6
    • ADDED MATES = 3
    • REMOVED MATES = 7
  • Sets
    • Q(a);OGATE::P(B),XQ(a)
    • Q(a);N_GUARD::R(A)
    • Q(a);N_GUARD,N_SPINP(e),XR(E)::R(A)
    • Q(a);N_GUARD::R(A),XQ(a)
    • B(h);N_GUARD::QAR1(I),XP(g)
    • S(b);XP(C)::S(F),XS(b)
    • S(i);N_GUARD::R(E),XP(e)
    • P(g);OGATE,XB(D)::R1(A),XP(g)
    • P(j);N_GUARD,XQ(I)::S(F),XB(h)
  • Tries
    • Try
      • Q(I);CHECK,XP(e)
      • Vars
        • K(d);S_FLIGHT,XS(F)::QAB1(I)
      • Refutation
        • S(i);P_SPINS(i),XQ(I)
  • Actual
    • S(F);XP(e)
    • Threat
      • QAB1(I)
    • Vars
      • Q(a);N_GUARD,XR(A)::R(E)+S(F),XS(i)
      • S(b);XP(C)::S(G),XS(b)
      • S(i);OGATE,P_SPINS(i),XS(F)::R(E),XS(i)
      • P(g);OGATE,XB(D)::QAR1(I),XP(g)
      • P(j);XQ(I)::S(G),XP(j)
      • P(k);N_GUARD,XP(H)::QAB(I)
      • Q(a);N_GUARD::R(E)+S(F),XS(i)
      • Q(a);N_GUARD::QAB1(I),XP(c)
      • S(i);N_GUARD::R(E)+S(F)
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