MESON Chess Problem Database

Problem Display
PID: 43505 (RnR1B3/pkpp4/N7/P3P3/2PN4/5K1Q/8/6B1 w - - 0 1)

Weenink, Henri Gerard Maria

Clubniews, 1917

RnR1B3/pkpp4/N7/P3P3/2PN4/5K1Q/8/6B1

#2

11 + 5

20 De Problemist 1930
16055 HGM Weenink (Euwe/Niemeijer/Rueb/Trotsenburg) 1932

SOLUTION

  • SOUND
  • Sets
    • 1...Kxa8
      • 2.Rxb8#
    • 1...Kxc8
      • 2.Rxb8#
    • 1...Sc6
      • 2.Sc5#
  • Tries
    • 1.Sc5+?
      • 1...Kxc8
        • 2.Qxd7#
      • 1...Kxa8!
    • 1.Rxc7+?
      • 1...Kxa6
        • 2.Rcxa7#
        • 2.Raxa7#
      • 1...Kxa8!
    • 1.Qxd7?
      • 1...Kxa6
        • 2.Qb5#
      • 1...Kxa8
        • 2.Rxb8#
        • 2.Qc6#
      • 1...Sxa6
        • 2.Qb5#
        • 2.Qc6#
      • 1...Sc6
        • 2.Sc5#
        • 2.Qxc6#
      • 1...Sxd7!
  • Keys
    • 1.Sc6!
      • 1...Kxa6
        • 2.Rxa7#
      • 1...Kxc6
        • 2.Rxc7#
      • 1...Kxa8
        • 2.Rxb8#
      • 1...Kxc8
        • 2.Rxb8#
      • 1...Sxa6
        • 2.Sd8#
      • 1...Sxc6
        • 2.Sc5#
      • 1...dxc6
        • 2.Rxa7#
      • 1...d5
        • 2.Rxa7#
      • 1...d6
        • 2.Rxa7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • K(b);P_SPINS(e),S_FLIGHT,XR(I)::R1(J),XS(e)
    • K(b);P_SPINP(d),P_SPINS(e),S_FLIGHT,XR(J)::R1(I),XS(e)
    • S(e);::S(H)
  • Tries
    • Try
      • S(H);CHECK
      • Vars
        • K(b);P_SPINP(d),P_SPINS(e),S_FLIGHT,XR(J)::QAB1(C),XP(d)
      • Refutation
        • K(b);P_SPINS(e),S_FLIGHT,XR(I)
    • Try
      • R(J);CHECK,XP(c)
      • Refutation
        • K(b);S_FLIGHT,XR(I)
    • Try
      • Q(C);P_PINP(c),XP(d)
      • Vars
        • K(b);N_SPINP(c),P_SPINP(a),S_FLIGHT,XS(H)::QAB1(C)
      • Refutation
        • S(e);N_SPINP(c),XQ(C)
  • Actual
    • S(E);
    • Vars
      • K(b);P_SPINP(a),S_FLIGHT,XS(H)::R1(I),XP(a)
      • K(b);P_SPINP(c),S_FLIGHT,XS(E)::R1(J),XP(c)
      • K(b);P_SPINS(e),S_FLIGHT,XR(I)::R1(J),XS(e)
      • K(b);P_SPINP(d),P_SPINS(e),S_FLIGHT,XR(J)::R1(I),XS(e)
      • S(e);SBLOCK,XS(H)::S(E)
      • S(e);SBLOCK,XS(E)::S(H)
      • P(d);XS(E)::R1(I),XP(a)
      • P(d);::R1(I),XP(a)
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