MESON Chess Problem Database

Problem Display
PID: 142234 (4R3/5q2/Q1pBb3/7r/N2k1p2/p6p/1R1P1K2/1n5B w - - 0 1)

Boyce, C

British Chess Magazine, 1891

4R3/5q2/Q1pBb3/7r/N2k1p2/p6p/1R1P1K2/1n5B

#2

8 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Rd5
      • 2.Rb4#
    • 1...Bd5
      • 2.Bc5#
    • 1...Bf5
      • 2.Bc5#
      • 2.Be5#
    • 1...Sxd2
      • 2.Rxd2#
    • 1...Sc3
      • 2.dxc3#
  • Keys
    • 1.Bd5!
      • threat
        • 2.Qc4#
      • 1...Kxd5
        • 2.Qd3#
      • 1...Rxd5
        • 2.Rb4#
      • 1...Bxd5
        • 2.Bc5#
      • 1...Sxd2
        • 2.Rxd2#
      • 1...cxd5
        • 2.Rb4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • R(f);S_CUTB(h)::R(B)
    • B(h);S_CUTR(f)::B(G)
    • S(a);OGATE,XP(C)::R(B),XS(a)
    • S(a);OGATE::P(C),XS(a)
  • Actual
    • B(A);
    • Threat
      • QAR1(F)
    • Vars
      • K(d);P-FLIGHT,XB(A)::QAR2(F)
      • R(f);SBLOCK,XB(A)::R(B)
      • B(h);SBLOCK,XB(A)::B(G)
      • S(a);OGATE,XP(C)::R(B),XS(a)
      • P(g);SBLOCK,XB(A)::R(B)
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