MESON Chess Problem Database

Problem Display
PID: 271686 (K1Q1n1R1/2p5/7p/3N1p1k/R7/8/8/1b2r3 w - - 0 1)

Caine, Walter Edmund

Sunday Referee, 1933

(First published on Sun Sep 10 1933)

K1Q1n1R1/2p5/7p/3N1p1k/R7/8/8/1b2r3

#2

5 + 7

15239 Valois Notebooks 2023

SOLUTION

  • SOUND
  • Sets
    • 1...Rc1
      • 2.Qxe8#
    • 1...Rd1
      • 2.Qxe8#
    • 1...Rf1
      • 2.Qxe8#
    • 1...Rh1
      • 2.Qxe8#
    • 1...Ba2
      • 2.Qxf5#
    • 1...Sd6
      • 2.Sf6#
    • 1...Sf6
      • 2.Sxf6#
    • 1...f4
      • 2.Qh3#
      • 2.Qg4#
  • Keys
    • 1.Rag4!
      • threat
        • 2.Sf4#
      • 1...fxg4
        • 2.Qxg4#
      • 1...Sg7
        • 2.Sf6#
      • 1...Rf1
        • 2.Qxe8#
      • 1...Re4
        • 2.Qxf5#
      • 1...Be4
        • 2.Qxe8#
      • 1...f4
        • 2.Sxf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 6
  • Sets
    • R(b);N_GUARD::QAB(D),XS(g)
    • B(a);N_GUARD::QAR2(D),XP(c)
    • S(g);N_GUARD::S(B)
    • S(g);N_GUARD::S(B),XS(g)
  • Actual
    • R(A);
    • Threat
      • S(B)
    • Vars
      • P(c);OGATE,XR(A)::QAB1(D),XP(c)
      • S(g);N_GUARD::S(B)
      • R(b);N_GUARD::QAB(D),XS(g)
      • R(b);S_CUTB(a)::QAR2(D),XP(c)
      • B(a);P_PINS(B),S_CUTR(b)::QAB(D),XS(g)
      • P(c);::S(B),XP(c)
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