MESON Chess Problem Database

Problem Display
PID: 45590 (2N5/1Kn5/2pN4/k2n2BR/3R3r/3Q1q1r/1P6/3Bbb2 w - - 0 1)

Rietveld, Johannes Jacob

4th HM., BCF 054. Ty., 1946-1947

2N5/1Kn5/2pN4/k2n2BR/3R3r/3Q1q1r/1P6/3Bbb2

#2

9 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Rxh5
      • 2.Ra4#
    • 1...Bd2
      • 2.Bxd2#
    • 1...Bf2
      • 2.Bd2#
    • 1...Bg3
      • 2.Bd2#
    • 1...Sc3
      • 2.b4#
    • 1...Se3
      • 2.Qa3#
    • 1...Sf4
      • 2.Ra4#
    • 1...Sb6
      • 2.Bd2#
    • 1...Sf6
      • 2.Bd2#
    • 1...Se7
      • 2.Bd2#
  • Tries
    • 1.Se7?
      • threat
        • 2.Sxc6#
      • 1...Sxe7
        • 2.Bd2#
      • 1...Sc3
        • 2.b4#
      • 1...Se3
        • 2.Qa3#
      • 1...Sf4
        • 2.Ra4#
      • 1...Sb6
        • 2.Bd2#
      • 1...Sf6
        • 2.Bd2#
      • 1...c5
        • 2.Sc6#
      • 1...Sb4!
  • Keys
    • 1.Sa7!
      • threat
        • 2.Sxc6#
      • 1...Sc3
        • 2.b4#
      • 1...Se3
        • 2.Qa3#
      • 1...Sb4
        • 2.Sc4#
      • 1...Sf4
        • 2.Ra4#
      • 1...Sb6
        • 2.Bd2#
      • 1...Sf6
        • 2.Bd2#
      • 1...Se7
        • 2.Bd2#
      • 1...c5
        • 2.Sc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 4
  • Sets
    • R(e);N_GUARD,SBLOCK,XR(F)::R1(D)
    • B(a);N_GUARD::B(E),XB(a)
    • B(a);N_GUARD::B(E)
    • S(g);N_GUARD,S_CUTB(a)::P(B)
    • S(g);S_CUTQ(c)::QAR2(C)
    • S(g);S_CUTR(e)::R1(D)
    • S(g);::R(F)+B(E),DCHECK
  • Tries
    • Try
      • S(I);
      • Threat
        • S(I),XP(h)
      • Vars
        • S(g);XS(I)::R(F)+B(E),DCHECK
        • S(g);N_GUARD,S_CUTB(a)::P(B)
        • S(g);S_CUTQ(c)::QAR2(C)
        • S(g);S_CUTR(e)::R1(D)
        • S(g);::R(F)+B(E),DCHECK
        • P(h);::S(I)
      • Refutation
        • S(g);
  • Actual
    • S(I);
    • Threat
      • S(I),XP(h)
    • Vars
      • S(g);N_GUARD,S_CUTB(a)::P(B)
      • S(g);S_CUTQ(c)::QAR2(C)
      • S(g);SBLOCK::S(G)
      • S(g);S_CUTR(e)::R1(D)
      • S(g);::R(F)+B(E),DCHECK
      • P(h);::S(I)
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