MESON Chess Problem Database

Problem Display
PID: 196739 (2R2B2/n2p4/Qp4Np/P2k1P1K/1p1N2Rp/b6r/b2nP1qp/1r5B w - - 0 1)

Rietveld, Johannes Jacob

3rd Prize, Hastings Victory Ty., 1919

2R2B2/n2p4/Qp4Np/P2k1P1K/1p1N2Rp/b6r/b2nP1qp/1r5B

#2

11 + 14

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Sb3
      • 2.Qc4#
    • 1...Sb5
      • 2.Qxb5#
      • 2.Qb7#
      • 2.Qa8#
    • 1...Sc6
      • 2.Qb5#
    • 1...Sxc8
      • 2.Qb5#
    • 1...bxa5
      • 2.Rc5#
      • 2.Qd6#
    • 1...b5
      • 2.Rc5#
      • 2.Qd6#
  • Tries
    • 1.Qxa7?
      • threat
        • 2.Qb7#
        • 2.Qxd7#
        • 2.Qa8#
      • 1...Qe4
        • 2.Qxd7#
      • 1...Rc1
        • 2.Qxd7#
      • 1...Rc3
        • 2.Qxd7#
      • 1...Sc4
        • 2.Qb7#
        • 2.Qa8#
      • 1...b3
        • 2.Qb7#
        • 2.Qa8#
      • 1...d6
        • 2.Qb7#
        • 2.Qf7#
        • 2.Qa8#
      • 1...Se4!
  • Keys
    • 1.Sc6!
      • threat
        • 2.Rd4#
      • 1...Sxc6
        • 2.Qb5#
      • 1...Sxc8
        • 2.Qb5#
      • 1...dxc6
        • 2.Rd8#
      • 1...d6
        • 2.Sce7#
      • 1...Qe4
        • 2.Sf4#
      • 1...Qf3
        • 2.Qd3#
      • 1...Rd3
        • 2.Qxd3#
      • 1...Bb2
        • 2.Sxb4#
      • 1...Sb3
        • 2.Qc4#
      • 1...Sf3
        • 2.e4#
      • 1...Se4
        • 2.Sf4#
      • 1...Sb5
        • 2.Qxb5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 9
    • REMOVED MATES = 0
  • Sets
    • S(c);N_GUARD,S_CUTB(b)::QAB1(H)
    • S(m);N_GUARD::QAR2(H)
    • S(m);N_GUARD,XR(J)::QAR2(H)
  • Tries
    • Try
      • Q(H);XS(m)
      • Threat
        • DUALS(3)
      • Vars
        • Q(d);::QAR2(H),XP(n)
        • R(a);::QAR2(H),XP(n)
        • R(g);::QAR2(H),XP(n)
      • Refutation
        • S(c);N_SPINQ(d)
  • Actual
    • S(C);
    • Threat
      • R1(D)
    • Vars
      • S(m);N_GUARD,XS(C)::QAR2(H)
      • S(m);N_GUARD,XR(J)::QAR2(H)
      • P(n);OGATEB,SBLOCK,XS(C)::R(J)
      • P(n);SBLOCK::S(C)
      • Q(d);::S(I)
      • Q(d);P_PINR(D),S_CUTR(g)::QAR2(H)
      • R(g);N_GUARD::QAR2(H),XR(g)
      • B(f);N_GUARD,S_CUTR(a)::S(C),XP(h)
      • S(c);N_GUARD,S_CUTB(b)::QAB1(H)
      • S(c);N_GUARD,N_SPINQ(d),S_CUTQ(d)::P(B)
      • S(c);N_SPINQ(d),SBLOCK::S(I)
      • S(m);N_GUARD::QAR2(H),XS(m)
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