MESON Chess Problem Database

Problem Display
PID: 70214 (4n3/2Bp4/Np3RK1/ppNk1P1p/3P2bR/1P1Q4/2Bn4/8 w - - 0 1)

den Toom, Cornelis

1st Comm., Het Belgisch Schaakbord (L'Echiquier Belge), 1989-1990

4n3/2Bp4/Np3RK1/ppNk1P1p/3P2bR/1P1Q4/2Bn4/8

#2

11 + 9

5110 Bekroonde Problemen 2002

SOLUTION

  • SOUND
  • Sets
    • 1...Bxf5+
      • 2.Qxf5#
    • 1...Sb1
      • 2.Qe4#
    • 1...Sf1
      • 2.Qe4#
    • 1...Sxb3
      • 2.Bxb3#
    • 1...Sf3
      • 2.Qe4#
    • 1...Sc4
      • 2.Qe4#
    • 1...Se4
      • 2.Qxe4#
    • 1...Sd6
      • 2.Rxd6#
    • 1...Sxc7
      • 2.Sxc7#
    • 1...Sg7
      • 2.Rd6#
    • 1...a4
      • 2.Sb4#
    • 1...bxc5
      • 2.dxc5#
  • Tries
    • 1.Sxd7?
      • threat
        • 2.Sxb6#
      • 1...Bxf5+
        • 2.Qxf5#
      • 1...Sd6
        • 2.Rxd6#
      • 1...Sc4
        • 2.Qe4#
      • 1...Sxf6!
  • Keys
    • 1.Qxb5!
      • threat
        • 2.Se6#
      • 1...Bxf5+
        • 2.Rxf5#
      • 1...Kxd4
        • 2.Qd3#
      • 1...Sxb3
        • 2.Sxb3#
      • 1...Sxc7
        • 2.Qxd7#
      • 1...bxc5
        • 2.Qxc5#
      • 1...Be2
        • 2.Sd3#
      • 1...Se4
        • 2.Qc4#
      • 1...Sd6
        • 2.Rxd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 5
    • ADDED MATES = 2
    • REMOVED MATES = 6
  • Sets
    • B(b);CHECK,OGATE,XP(G)::QAR2(C),XB(b)
    • S(a);N_GUARD::QAB1(C)
    • S(a);OGATE,XP(B)::B(A),XS(a)
    • S(a);N_GUARD::QAB1(C),XS(a)
    • S(i);N_GUARD::R1(I),XS(i)
    • S(i);XB(K)::S(H),XS(i)
    • S(i);N_GUARD::R1(I)
    • P(c);N_GUARD::S(H)
    • P(g);OGATE,XS(F)::QAR(C)+P(D),XP(g)
  • Tries
    • Try
      • S(F);XP(h)
      • Threat
        • S(F),XP(g)
      • Vars
        • B(b);CHECK,OGATE,XP(G)::QAR2(C),XB(b)
        • S(i);N_GUARD::R1(I),XS(i)
        • S(a);N_GUARD::QAB1(C)
      • Refutation
        • S(i);XR(I)
  • Actual
    • Q(C);XP(d)
    • Threat
      • QAR(C)+S(F)
    • Vars
      • B(b);CHECK,OGATE,XP(G)::R(I),XB(b)
      • K(e);OGATEB,P-FLIGHT,P_SPINB(b),XP(D)::QAR1(C)
      • S(a);XP(B)::QAR(C)+S(F),XS(a)
      • S(i);N_GUARD,XB(K)::QAR2(C),XP(h)
      • P(g);OGATE,P_SPINP(g),XS(F)::QAR1(C),XP(g)
      • B(b);::QAR(C)+S(F)
      • S(a);N_GUARD::QAB1(C)
      • S(i);N_GUARD::R1(I),XS(i)
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