MESON Chess Problem Database

Problem Display
PID: 44893 (5Bb1/2p5/1P2N1Qn/KP1kp3/2N5/p1Pp1P2/q1n5/8 w - - 0 1)

Goldschmeding, Cornelis

4th Prize, Die Schwalbe 162. TT, 1979

5Bb1/2p5/1P2N1Qn/KP1kp3/2N5/p1Pp1P2/q1n5/8

#2

9 + 9

3750 FIDE Album (1977-1979) 1984
23 Die Schwalbe 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Bxe6
      • 2.Qe4#
    • 1...Sa1
      • 2.Se3#
    • 1...Se1
      • 2.Se3#
    • 1...Se3
      • 2.Sxe3#
    • 1...Sb4
      • 2.Se3#
    • 1...Sd4
      • 2.Se3#
    • 1...e4
      • 2.Qxe4#
    • 1...cxb6+
      • 2.Sxb6#
  • Tries
    • 1.Sd4?
      • threat
        • 2.Qc6#
      • 1...cxb6+
        • 2.Sxb6#
      • 1...Kxc4
        • 2.Qc6#
      • 1...Qxc4
        • 2.Qe4#
      • 1...Sxd4
        • 2.Se3#
      • 1...Be6
        • 2.Qxe6#
      • 1...Sb4
        • 2.Se3#
      • 1...c6
        • 2.Qxc6#
      • 1...c5!
    • 1.Sf4+?
      • 1...exf4
        • 2.Qe4#
        • 2.Qc6#
      • 1...Kxc4!
    • 1.Qxd3+?
      • 1...Sd4
        • 2.Sxc7#
      • 1...Kxe6!
  • Keys
    • 1.Sc5!
      • threat
        • 2.Qe4#
      • 1...cxb6+
        • 2.Sxb6#
      • 1...Kxc4
        • 2.Qxd3#
      • 1...Qxc4
        • 2.Qc6#
      • 1...Bh7
        • 2.Qe6#
      • 1...Sd4
        • 2.Se3#
      • 1...Sf5
        • 2.Qxg8#
      • 1...e4
        • 2.Qxe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 5
  • Sets
    • B(i);SBLOCK,XS(G)::QAB1(H)
    • S(b);N_GUARD::S(C)
    • S(b);N_GUARD::S(C),XS(b)
    • P(f);::QAB1(H),XP(f)
    • P(h);CHECK,XP(F)::S(C),XP(h)
  • Tries
    • Try
      • S(G);
      • Threat
        • QAB1(H)
      • Vars
        • P(h);CHECK,XP(F)::S(C),XP(h)
        • K(e);S_FLIGHT,XS(C)::QAR2(H)
        • Q(a);SBLOCK,XS(C)::QAB1(H)
        • S(b);N_GUARD,XS(G)::S(C)
        • B(i);N_GUARD::QAB1(H),XB(i)
        • S(b);N_GUARD::S(C)
        • P(h);::QAB1(H),XP(h)
      • Refutation
        • P(h);
    • Try
      • S(G);CHECK
      • Refutation
        • K(e);S_FLIGHT,XS(C)
    • Try
      • Q(H);CHECK,XP(d)
      • Vars
        • S(b);P_SPINS(b)::S(G),XP(h)
      • Refutation
        • K(e);S_FLIGHT,XS(G)
  • Actual
    • S(G);
    • Threat
      • QAB1(H)
    • Vars
      • P(h);CHECK,XP(F)::S(C),XP(h)
      • K(e);S_FLIGHT,XS(C)::QAB1(H),XP(d)
      • Q(a);SBLOCK,XS(C)::QAB1(H)
      • B(i);N_GUARD::QAB1(H)
      • S(b);N_GUARD::S(C)
      • S(g);N_GUARD::QAB(H),XB(i)
      • P(f);::QAB1(H),XP(f)
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