MESON Chess Problem Database

Problem Display
PID: 18229 (7q/b2pRp2/6p1/1Pnkn2r/p1pNR1B1/B4pQ1/K1N5/8 w - - 0 1)

Rietveld, Johannes Jacob

1st Prize, Mari MT, 1954

7q/b2pRp2/6p1/1Pnkn2r/p1pNR1B1/B4pQ1/K1N5/8

#2

9 + 12

3105 FIDE Album (1945-1955) 1964

SOLUTION

  • SOUND
  • Sets
    • 1...Kxe4
      • 2.Qxf3#
    • 1...Kd6
      • 2.Rxd7#
    • 1...Sd3
      • 2.Se3#
    • 1...Sxg4
      • 2.Sb4#
    • 1...Sc6
      • 2.Se3#
  • Tries
    • 1.Se3+?
      • 1...Kd6
        • 2.Rxd7#
      • 1...Kxe4!
  • Keys
    • 1.Se2!
      • threat
        • 2.Rd4#
      • 1...Kxe4
        • 2.Qxf3#
      • 1...Kd6
        • 2.Rxd7#
      • 1...Sxe4
        • 2.Sf4#
      • 1...Sxg4
        • 2.Sb4#
      • 1...Sb3
        • 2.Sc3#
      • 1...Scd3
        • 2.Sc3#
      • 1...Sa6
        • 2.Sc3#
      • 1...Se6
        • 2.Sc3#
      • 1...Sb7
        • 2.Sc3#
      • 1...Sed3
        • 2.Se3#
      • 1...Sc6
        • 2.Se3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • K(e);OGATEB,P_SPINS(f),S_FLIGHT,XR(F)::QAB1(D),XP(a)
    • K(e);P-FLIGHT,P_SPINS(d)::R1(I),XP(j)
    • S(f);::S(B)
    • S(f);XB(G)::S(B)
  • Tries
    • Try
      • S(B);CHECK
      • Vars
        • K(e);P-FLIGHT,P_SPINS(d)::R1(I),XP(j)
      • Refutation
        • K(e);P_SPINS(f),S_FLIGHT,XR(F)
  • Actual
    • S(E);
    • Threat
      • R1(F)
    • Vars
      • K(e);OGATEB,P_SPINS(f),S_FLIGHT,XR(F)::QAB1(D),XP(a)
      • K(e);P-FLIGHT,P_SPINS(d)::R1(I),XP(j)
      • S(d);SBLOCK,XR(F)::S(E)
      • S(f);XB(G)::S(B)
      • S(d);::S(E)
      • S(f);::S(B)
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