MESON Chess Problem Database

Problem Display
PID: 52452 (1b3Q2/3p4/3BPP2/1p6/2Pkp1p1/Rr2N1Kb/1N1P1P2/1B6 w - - 0 1)

Howard, Kenneth Samuel

Western Morning News and Mercury, 1926

(First published on Sat Jan 9 1926)

1b3Q2/3p4/3BPP2/1p6/2Pkp1p1/Rr2N1Kb/1N1P1P2/1B6

#2

12 + 8

5089 The Enjoyment of Chess Problems 1943
15239 Valois Notebooks 2024

SOLUTION

  • SOUND
  • Sets
    • 1...Rc3
      • 2.dxc3#
    • 1...Rxe3+
      • 2.dxe3#
      • 2.fxe3#
    • 1...Rb4
      • 2.Sc2#
      • 2.Sf5#
    • 1...Bxd6+
      • 2.Qxd6#
  • Tries
    • 1.Bxb8?
      • threat
        • 2.Qd6#
      • 1...Rxe3+
        • 2.dxe3#
        • 2.fxe3#
      • 1...d6
        • 2.Qxd6#
      • 1...d5!
    • 1.Rxb3?
      • threat
        • 2.Sc2#
        • 2.Sf5#
      • 1...Bxd6+
        • 2.Qxd6#
      • 1...dxe6
        • 2.Sc2#
      • 1...bxc4!
    • 1.Qxb8?
      • threat
        • 2.Qa7#
        • 2.Qb6#
      • 1...Rxe3+
        • 2.dxe3#
        • 2.fxe3#
      • 1...Rxa3
        • 2.Qb6#
      • 1...bxc4!
    • 1.f7?
      • threat
        • 2.Qg7#
        • 2.Qh8#
      • 1...Rxe3+
        • 2.dxe3#
        • 2.fxe3#
      • 1...Bxd6+
        • 2.Qxd6#
      • 1...dxe6!
  • Keys
    • 1.f4!
      • threat
        • 2.Bc5#
      • 1...Rxe3+
        • 2.dxe3#
      • 1...Bxd6
        • 2.Qxd6#
      • 1...exf4 ep
        • 2.Sf5#
      • 1...gxf4 ep
        • 2.Sc2#
      • 1...Ba7
        • 2.Be5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • R(a);OGATE::P(C),XR(a)
    • B(h);CHECK,OGATE,XB(I)::QAR2(L),XB(h)
  • Tries
    • Try
      • B(I);N_SPINB(I),XB(h)
      • Threat
        • QAR2(L)
      • Vars
        • P(g);::QAR2(L),XP(g)
      • Refutation
        • P(g);
    • Try
      • R(E);N_SPINS(F),XR(a)
      • Threat
        • DUALS(2)
      • Vars
        • B(h);CHECK,OGATE,XB(I)::QAR2(L),XB(h)
        • P(g);XP(J)::S(F)
      • Refutation
        • P(f);XP(H)
    • Try
      • Q(L);N_SPINB(I),XB(h)
      • Threat
        • DUALS(2)
      • Vars
        • R(a);XR(E)::QAB(L)
      • Refutation
        • P(f);XP(H)
    • Try
      • P(K);
      • Threat
        • DUALS(2)
      • Vars
        • B(h);CHECK,OGATE,XB(I)::QAR2(L),XB(h)
      • Refutation
        • P(g);XP(J)
  • Actual
    • P(D);N_SPINB(I)
    • Threat
      • B(I)
    • Vars
      • R(a);CHECK,OGATE,XS(F)::P(C),XR(a)
      • B(h);OGATE,P_PINP(D),XB(I)::QAR2(L),XB(h)
      • P(d);EP,N_PINS(F),P_PINB(I),XP(D)::S(F)
      • P(e);EP,N_PINS(F),P_PINB(I),XP(D)::S(F)
      • B(h);N_GUARD::B(I)
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