MESON Chess Problem Database

Problem Display
PID: 175288 (2QR3b/1p5b/2N3p1/p3p2n/r2pk1B1/r4p1N/n1P2K2/8 w - - 0 1)

Coppens, JP

Brisbane Courier, 1920

2QR3b/1p5b/2N3p1/p3p2n/r2pk1B1/r4p1N/n1P2K2/8

#2

7 + 13

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Sc3
      • 2.Bxf3#
    • 1...Sf4
      • 2.Sg5#
    • 1...d3
      • 2.Bxf3#
    • 1...bxc6
      • 2.Qxc6#
  • Keys
    • 1.Qe6!
      • threat
        • 2.Qd5#
      • 1...bxc6
        • 2.Qxc6#
      • 1...Bg8
        • 2.Qxg6#
      • 1...Sc3
        • 2.Bxf3#
      • 1...Sb4
        • 2.Rxd4#
      • 1...Sf4
        • 2.Sg5#
      • 1...Sf6
        • 2.Qxe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • S(a);S_CUTR(b)::B(D),XP(c)
    • S(i);SBLOCK::S(C)
    • P(e);S_CUTR(b)::B(D),XP(c)
    • P(k);OGATE,XS(E)::QAB(F),XP(k)
  • Actual
    • Q(F);P_PINP(h)
    • Threat
      • QAB1(F)
    • Vars
      • P(k);OGATE,XS(E)::QAB(F),XP(k)
      • B(l);N_GUARD::QAB(F),XP(j)
      • S(a);S_CUTR(b)::B(D),XP(c)
      • S(a);S_CUTR(d)::R1(G),XP(e)
      • S(i);SBLOCK::S(C)
      • S(i);S_CUTB(m)::QAR1(F),XP(h)
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