MESON Chess Problem Database

Problem Display
PID: 165163 (2r3bq/1N3nb1/7p/P1BR1Q1K/2k1rp2/1R6/Pn6/8 w - - 0 1)

Rietveld, Johannes Jacob

3rd Prize, Haagsche Post, 1917

(First published on Wed Jan 3 1917)

2r3bq/1N3nb1/7p/P1BR1Q1K/2k1rp2/1R6/Pn6/8

#2

8 + 10

15148 Sadier Collection 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Re5
      • 2.Rd4#
    • 1...Se5
      • 2.Qxe4#
    • 1...Sg5
      • 2.Sd6#
    • 1...Sd6
      • 2.Sxd6#
    • 1...Sd8
      • 2.Sd6#
  • Tries
    • 1.Rd8?
      • threat
        • 2.Qd5#
      • 1...Rxc5
        • 2.Qxc5#
      • 1...Sxd8
        • 2.Sd6#
      • 1...Rd4
        • 2.Qc2#
      • 1...Re5
        • 2.Rd4#
      • 1...Be5
        • 2.Qe6#
      • 1...Se5
        • 2.Qxe4#
      • 1...Sg5
        • 2.Sd6#
      • 1...Sd6
        • 2.Sxd6#
      • 1...Rxd8!
  • Keys
    • 1.Rd7!
      • threat
        • 2.Qd5#
      • 1...Rxc5
        • 2.Qxc5#
      • 1...Rd4
        • 2.Qc2#
      • 1...Re5
        • 2.Rd4#
      • 1...Be5
        • 2.Qe6#
      • 1...Se5
        • 2.Qxe4#
      • 1...Sg5
        • 2.Sd6#
      • 1...Sd6
        • 2.Sxd6#
      • 1...Sd8
        • 2.Sd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • R(c);N_GUARD,P_PINQ(F),S_CUTB(g)::R1(E)
    • S(f);S_CUTB(g)::QAR2(F),XR(c)
    • S(f);N_GUARD::S(H)
    • S(f);N_GUARD::S(H),XS(f)
  • Tries
    • Try
      • R(E);
      • Threat
        • QAB1(F)
      • Vars
        • R(h);OGATE,P_PINQ(F),XB(D)::QAR1(F),XR(h)
        • S(f);N_GUARD,XR(E)::S(H)
        • R(c);OGATE::QAR2(F)
        • R(c);N_GUARD,P_PINQ(F),S_CUTB(g)::R1(E)
        • B(g);S_CUTR(c)::QAB(F)
        • S(f);S_CUTB(g)::QAR2(F),XR(c)
        • S(f);N_GUARD::S(H)
        • S(f);N_GUARD::S(H),XS(f)
      • Refutation
        • R(h);XR(E)
  • Actual
    • R(E);
    • Threat
      • QAB1(F)
    • Vars
      • R(h);OGATE,P_PINQ(F),XB(D)::QAR1(F),XR(h)
      • R(c);OGATE::QAR2(F)
      • R(c);N_GUARD,P_PINQ(F),S_CUTB(g)::R1(E)
      • B(g);S_CUTR(c)::QAB(F)
      • S(f);S_CUTB(g)::QAR2(F),XR(c)
      • S(f);N_GUARD::S(H)
      • S(f);N_GUARD::S(H),XS(f)
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