MESON Chess Problem Database

Problem Display
PID: 59650 (8/2r5/1b6/p2R1Pp1/r4kP1/3PR2P/3PnK1P/8 w - - 0 1)

Howard, Kenneth Samuel

Pittsburgh Post, 1926

8/2r5/1b6/p2R1Pp1/r4kP1/3PR2P/3PnK1P/8

#2

9 + 7

5089 The Enjoyment of Chess Problems 1943

SOLUTION

  • SOUND
  • Sets
    • 1...Rd4
      • 2.Rf3#
    • 1...Rc5
      • 2.Rf3#
    • 1...Bxe3+
      • 2.dxe3#
    • 1...Sg3
      • 2.hxg3#
    • 1...Sd4
      • 2.Re4#
  • Tries
    • 1.Kxe2?
      • threat
        • 2.Rf3#
      • 1...Bxe3
        • 2.dxe3#
      • 1...Re4
        • 2.Rxe4#
      • 1...Re7!
  • Keys
    • 1.f6!
      • threat
        • 2.Rf5#
      • 1...Bxe3+
        • 2.dxe3#
      • 1...Rc5
        • 2.Rf3#
      • 1...Sg3
        • 2.hxg3#
      • 1...Sd4
        • 2.Re4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 1
  • Sets
    • R(b);N_PINR(E)::R1(E)
    • R(g);N_PINR(E)::R1(E)
    • B(f);CHECK,OGATE,XR(E)::P(A),XB(f)
    • S(a);OGATE::P(C),XS(a)
    • S(a);N_PINR(E)::R1(E)
  • Tries
    • Try
      • K(B);N_SPINR(E),P-FLIGHT,XS(a)
      • Threat
        • R1(E)
      • Vars
        • B(f);OGATE,XR(E)::P(A),XB(f)
        • R(b);N_GUARD,P_PINR(E)::R1(E),XR(b)
      • Refutation
        • R(g);P_PINR(E)
  • Actual
    • P(I);
    • Threat
      • R1(H)
    • Vars
      • B(f);CHECK,OGATE,XR(E)::P(A),XB(f)
      • R(g);N_PINR(E)::R1(E)
      • S(a);OGATE::P(C),XS(a)
      • S(a);N_PINR(E)::R1(E)
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