MESON Chess Problem Database

Problem Display
PID: 190922 (4KB2/1n6/8/RN1PQpRp/1pkPp1b1/5q2/1PP5/3r4 w - - 0 1)

Slagmolen, Cornelis

Neue Osnabrucker Zeitung, 2001

(First published on Sat Apr 14 2001)

4KB2/1n6/8/RN1PQpRp/1pkPp1b1/5q2/1PP5/3r4

#2

10 + 9

16210 Problemschach-Jahrbuch (2001) 2002

SOLUTION

  • SOUND
  • Sets
    • 1...Qh1
      • 2.b3#
    • 1...Qe2
      • 2.b3#
    • 1...Qg2
      • 2.b3#
    • 1...Qf1
      • 2.b3#
    • 1...Qf2
      • 2.b3#
    • 1...Qf4
      • 2.b3#
    • 1...Rxd4
      • 2.Qxd4#
    • 1...Sxa5
      • 2.Sd6#
    • 1...Sc5
      • 2.Sd6#
    • 1...Sd6+
      • 2.Sxd6#
    • 1...Sd8
      • 2.Sd6#
    • 1...b3
      • 2.Sa3#
    • 1...e3
      • 2.b3#
  • Tries
    • 1.Qc7+?
      • 1...Sc5
        • 2.Qxc5#
      • 1...Kxd5!
  • Keys
    • 1.d6!
      • threat
        • 2.Qe6#
      • 1...Sxd6+
        • 2.Sxd6#
      • 1...Rxd4
        • 2.Qxd4#
      • 1...Sxa5
        • 2.Qc5#
      • 1...b3
        • 2.Ra4#
      • 1...Sc5
        • 2.Qxc5#
      • 1...Sd8
        • 2.Qc5#
      • 1...e3
        • 2.b3#
      • 1...f4
        • 2.Qd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 4
    • ADDED MATES = 1
    • REMOVED MATES = 6
  • Sets
    • Q(b);N_GUARD::P(A)
    • R(a);OGATE,XP(C)::QAR1(G),XR(a)
    • S(i);N_GUARD,XR(D)::S(E)
    • S(i);N_GUARD::S(E)
    • S(i);CHECK,N_GUARD::S(E),XS(i)
    • P(c);N_GUARD,S_CUTQ(b)::S(E)
    • P(e);S_CUTQ(b)::P(A)
  • Tries
    • Try
      • Q(G);CHECK
      • Vars
        • S(i);N_GUARD,P_SPINS(i)::QAR1(G),XS(i)
      • Refutation
        • K(d);P_SPINP(g),S_FLIGHT,XP(F)
  • Actual
    • P(F);
    • Threat
      • QAB(G)
    • Vars
      • S(i);CHECK,XP(F)::S(E),XS(i)
      • R(a);OGATE,XP(C)::QAR1(G),XR(a)
      • S(i);N_GUARD,XR(D)::QAR1(G)
      • P(c);OGATEB::R(D)
      • S(i);N_GUARD::QAR1(G),XS(i)
      • S(i);N_GUARD::QAR1(G)
      • P(e);S_CUTQ(b)::P(A)
      • P(g);::QAB1(G)
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