MESON Chess Problem Database

Problem Display
PID: 52439 (3N4/6B1/3p4/2rk2K1/r3N3/nn6/4Q3/5B2 w - - 0 1)

Howard, Kenneth Samuel

4/5 Prize, Falkirk Herald (Meredith Ty.), 1927

3N4/6B1/3p4/2rk2K1/r3N3/nn6/4Q3/5B2

#2

6 + 6

5089 The Enjoyment of Chess Problems 1943
14868 Pirnie Collection 2013

SOLUTION

  • SOUND
  • Sets
    • 1...Rd4
      • 2.Sf6#
    • 1...Sc4
      • 2.Sc3#
    • 1...Sd4
      • 2.Sf6#
  • Tries
    • 1.Bh3?
      • threat
        • 2.Be6#
      • 1...Sd4
        • 2.Sf6#
      • 1...Rxe4!
    • 1.Qf3?
      • threat
        • 2.Sc3#
        • 2.Qf5#
      • 1...Rc1
        • 2.Qf5#
      • 1...Rc2
        • 2.Qf5#
      • 1...Rc3
        • 2.Qf5#
      • 1...Rcc4
        • 2.Qf5#
      • 1...Rca5
        • 2.Qf5#
      • 1...Rb5
        • 2.Qf5#
      • 1...Rc6
        • 2.Qf5#
      • 1...Rc7
        • 2.Qf5#
      • 1...Rc8
        • 2.Qf5#
      • 1...Sc4
        • 2.Sd2#
        • 2.Sf2#
        • 2.Sc3#
        • 2.Sg3#
      • 1...Sd4
        • 2.Sc3#
      • 1...Rxe4!
  • Keys
    • 1.Kf4!
      • threat
        • 2.Qh5#
      • 1...Rxe4+
        • 2.Qxe4#
      • 1...Sc4
        • 2.Sc3#
      • 1...Sd4
        • 2.Sf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • R(c);SBLOCK::S(C)
    • S(a);S_CUTR(d)::S(C)
    • S(b);SBLOCK::S(C)
  • Tries
    • Try
      • B(A);
      • Threat
        • B(A)
      • Vars
        • S(b);SBLOCK::S(C)
      • Refutation
        • R(c);XS(C)
    • Try
      • Q(B);
      • Threat
        • DUALS(2)
      • Vars
        • R(d);::QAR2(B)
        • S(b);::QAB(B)+S(C),DCHECK
      • Refutation
        • R(c);P_SPINR(c),XS(C)
  • Actual
    • K(D);P_SPINS(C),S_FLIGHT
    • Threat
      • QAR(B)
    • Vars
      • R(c);CHECK,OGATE,XS(C)::QAB1(B),XR(c)
      • S(a);N_PINS(C)::S(C)
      • S(b);N_PINS(C),SBLOCK::S(C)
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