MESON Chess Problem Database

Problem Display
PID: 51827 (bb3r1B/7B/Q7/p2krn1R/p5R1/3N2pK/8/8 w - - 0 1)

Howard, Kenneth Samuel

British Chess Magazine, 1941

bb3r1B/7B/Q7/p2krn1R/p5R1/3N2pK/8/8

#2

7 + 9

5089 The Enjoyment of Chess Problems 1943

SOLUTION

  • SOUND
  • Sets
    • 1...Re1
      • 2.Rd4#
    • 1...Re2
      • 2.Rd4#
    • 1...Re3
      • 2.Rd4#
    • 1...Re6
      • 2.Rd4#
    • 1...Re7
      • 2.Rd4#
    • 1...Ree8
      • 2.Rd4#
    • 1...Bd6
      • 2.Qc4#
    • 1...Sd4
      • 2.Be4#
    • 1...Sd6
      • 2.Rxe5#
  • Tries
    • 1.Sb4+?
      • 1...Kc5
        • 2.Rc4#
      • 1...axb4!
  • Keys
    • 1.Rc4!
      • threat
        • 2.Sf4#
      • 1...Bc6
        • 2.Qxc6#
      • 1...Sd6
        • 2.Rxe5#
      • 1...Re1
        • 2.Rd4#
      • 1...Re2
        • 2.Rd4#
      • 1...Re3
        • 2.Rd4#
      • 1...Re4
        • 2.Rc5#
      • 1...Re6
        • 2.Rd4#
      • 1...Re7
        • 2.Rd4#
      • 1...Ree8
        • 2.Rd4#
      • 1...Se3
        • 2.Be4#
      • 1...Sd4
        • 2.Rc5#
      • 1...Sh4
        • 2.Be4#
      • 1...Sh6
        • 2.Be4#
      • 1...Se7
        • 2.Be4#
      • 1...Sg7
        • 2.Be4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 7
    • REMOVED MATES = 1
  • Sets
    • R(e);P_SPINS(f)::R1(C)
    • B(h);SBLOCK::QAB1(E)
    • S(f);OGATE,P_SPINR(e),SBLOCK::B(F)
    • S(f);OGATE,P_SPINR(e)::R1(D),XR(e)
  • Tries
    • Try
      • S(A);CHECK
      • Vars
        • K(d);P-FLIGHT::R1(C)
      • Refutation
        • P(c);XS(A)
  • Actual
    • R(C);
    • Threat
      • S(A)
    • Vars
      • B(g);N_GUARD::QAB1(E),XB(g)
      • S(f);OGATE,P_SPINR(e)::R1(D),XR(e)
      • R(e);P_SPINS(f)::R1(C)
      • R(e);P_SPINS(f),SBLOCK::R1(C)
      • S(f);OGATE,P_SPINR(e)::B(F)
      • S(f);P_SPINR(e),SBLOCK::R1(C)
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