MESON Chess Problem Database

Problem Display
PID: 80141 (R3B3/1pn5/bBr1p3/3NP3/kpRp4/N2K4/PPr5/n2Q4 w - - 0 1)

Visserman, Eeltje

La Bataille, 1946

R3B3/1pn5/bBr1p3/3NP3/kpRp4/N2K4/PPr5/n2Q4

#2

11 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Sb5
      • 2.Rxb4#
  • Tries
    • 1.Bxc6+?
      • 1...Sb5
        • 2.Bxb5#
        • 2.Rxb4#
      • 1...bxc6!
    • 1.Rxa6+?
      • 1...bxa6
        • 2.Rxb4#
      • 1...Sxa6!
    • 1.Qxc2+?
      • 1...Sb3
        • 2.Qxb3#
        • 2.axb3#
      • 1...Sxc2!
  • Keys
    • 1.Sxb4!
      • threat
        • 2.Sbxc2#
        • 2.Sd5#
        • 2.Sxa6#
        • 2.Sxc6#
      • 1...Sxa8
        • 2.Sxa6#
      • 1...Sxe8
        • 2.Sxc6#
      • 1...Sb3
        • 2.Sbxc2#
      • 1...Sb5
        • 2.Sxc6#
      • 1...Sd5
        • 2.Sxd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • S(j);N_PINR(F)::R1(F),XP(d)
  • Tries
    • Try
      • B(K);CHECK,XR(g)
      • Refutation
        • P(i);XB(K)
    • Try
      • R(J);CHECK,N_SPINR(F),XB(f)
      • Vars
        • P(i);XR(J)::R1(F),XP(d)
      • Refutation
        • S(j);XR(J)
    • Try
      • Q(A);CHECK,P_PINR(g),XR(b)
      • Refutation
        • S(a);XQ(A)
  • Actual
    • S(G);XP(d)
    • Threat
      • DUALS(4)
    • Vars
      • S(j);N_SPINB(f),XR(J)::R(F)+S(G),XB(f)
      • S(j);XB(K)::R(F)+S(G),XR(g)
      • S(a);N_SPINR(b),P_SPINR(g)::R(F)+S(G),XR(b)
      • S(j);N_PINR(F)::R(F)+S(G),XR(g)
      • S(j);::R(F)+S(G),XS(j)
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Developed and maintained by Brian Stephenson.
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