MESON Chess Problem Database

Problem Display
PID: 176301 (3n4/4K3/4p3/N3k3/6RN/1b1p2P1/2P3B1/1r6 w - - 0 1)

ten Cate, Pieter

Schach-Echo, 1972

3n4/4K3/4p3/N3k3/6RN/1b1p2P1/2P3B1/1r6

#2

7 + 6

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Bxc2
      • 2.Sc4#
    • 1...Ba4
      • 2.Sc4#
    • 1...Bc4
      • 2.Sxc4#
    • 1...Sc6+
      • 2.Sxc6#
    • 1...Sb7
      • 2.Sc6#
    • 1...Sf7
      • 2.Sc6#
  • Tries
    • 1.cxb3?
      • threat
        • 2.Sc4#
      • 1...Sc6+
        • 2.Sxc6#
      • 1...Rc1!
    • 1.cxd3?
      • threat
        • 2.d4#
      • 1...Sc6+
        • 2.Sxc6#
      • 1...Rd1!
    • 1.c3?
      • threat
        • 2.Rg5#
      • 1...Sc6+
        • 2.Sxc6#
      • 1...Sf7
        • 2.Sc6#
      • 1...Rf1!
    • 1.c4?
      • threat
        • 2.Re4#
      • 1...Sc6+
        • 2.Sxc6#
      • 1...Bxc4
        • 2.Sxc4#
      • 1...Re1!
  • Keys
    • 1.Rf4!
      • threat
        • 2.Sg6#
      • 1...Sc6+
        • 2.Sxc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 5
  • Sets
    • B(b);N_GUARD,XP(A)::S(F)
    • B(b);N_GUARD::S(F)
    • B(b);N_GUARD::S(F),XB(b)
    • S(f);CHECK,N_GUARD::S(F),XS(f)
    • S(f);N_GUARD::S(F)
  • Tries
    • Try
      • P(A);XB(b)
      • Threat
        • S(F)
      • Vars
        • S(f);CHECK,N_GUARD::S(F),XS(f)
      • Refutation
        • R(a);
    • Try
      • P(A);XP(c)
      • Threat
        • P(A)
      • Vars
        • S(f);CHECK,N_GUARD::S(F),XS(f)
      • Refutation
        • R(a);
    • Try
      • P(A);
      • Threat
        • R(D)
      • Vars
        • S(f);CHECK,N_GUARD::S(F),XS(f)
        • S(f);N_GUARD::S(F)
      • Refutation
        • R(a);
    • Try
      • P(A);
      • Threat
        • R1(D)
      • Vars
        • S(f);CHECK,N_GUARD::S(F),XS(f)
        • B(b);XP(A)::S(F),XB(b)
      • Refutation
        • R(a);
  • Actual
    • R(D);
    • Threat
      • S(E)
    • Vars
      • S(f);CHECK,N_GUARD::S(F),XS(f)
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