MESON Chess Problem Database

Problem Display
PID: 245893 (8/B2K4/3N4/n2k4/P4P2/R2pp3/N1P5/3rq3 w - - 0 1)

Groeneveld, Cornelis

Europa-Rochade, 1999

8/B2K4/3N4/n2k4/P4P2/R2pp3/N1P5/3rq3

#2

8 + 6

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Qf2
      • 2.Sc3#
      • 2.Sb4#
    • 1...Qc3
      • 2.Sxc3#
    • 1...Qg3
      • 2.Sc3#
      • 2.Sb4#
    • 1...Qb4
      • 2.Sxb4#
    • 1...Qh4
      • 2.Sc3#
      • 2.Sb4#
    • 1...Qf1
      • 2.Sc3#
      • 2.Sb4#
    • 1...Qg1
      • 2.Sc3#
      • 2.Sb4#
    • 1...Qh1
      • 2.Sc3#
      • 2.Sb4#
    • 1...Qe2
      • 2.Sc3#
      • 2.Sb4#
    • 1...Ra1
      • 2.Rxd3#
    • 1...Rb1
      • 2.Rxd3#
    • 1...Rc1
      • 2.Rxd3#
    • 1...Rd2
      • 2.Sc3#
      • 2.Sb4#
    • 1...Sb3
      • 2.c4#
    • 1...Sc6
      • 2.c4#
    • 1...Sb7
      • 2.c4#
    • 1...d2
      • 2.Sc3#
      • 2.Sb4#
      • 2.Rd3#
  • Tries
    • 1.Rc3?
      • threat
        • 2.Sb4#
      • 1...Qxc3
        • 2.Sxc3#
      • 1...Rb1
        • 2.Rxd3#
      • 1...Sc6!
    • 1.c3?
      • threat
        • 2.Sb4#
      • 1...Qxc3
        • 2.Sxc3#
      • 1...Sc6
        • 2.c4#
      • 1...Rb1!
  • Keys
    • 1.Rb3!
      • threat
        • 2.Rb5#
      • 1...Sxb3
        • 2.c4#
      • 1...Qc3
        • 2.Sxc3#
      • 1...Qb4
        • 2.Sxb4#
      • 1...Rb1
        • 2.Rxd3#
      • 1...Sb7
        • 2.c4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 3
  • Sets
    • Q(b);N_GUARD::S(A),XQ(b)
    • R(a);N_GUARD::R(C),XP(c)
    • S(e);N_GUARD::P(B)
  • Tries
    • Try
      • R(C);
      • Threat
        • S(A)
      • Vars
        • Q(b);XR(C)::S(A),XQ(b)
        • R(a);N_GUARD::R(C),XP(c)
      • Refutation
        • S(e);
    • Try
      • P(B);
      • Threat
        • S(A)
      • Vars
        • Q(b);XP(B)::S(A),XQ(b)
        • S(e);N_GUARD::P(B)
      • Refutation
        • R(a);
  • Actual
    • R(C);
    • Threat
      • R(C)
    • Vars
      • S(e);N_GUARD,XR(C)::P(B)
      • Q(b);N_GUARD::S(A),XQ(b)
      • R(a);N_GUARD::R(C),XP(c)
      • S(e);N_GUARD::P(B)
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