MESON Chess Problem Database

Problem Display
PID: 159807 (1BR2K2/1n1pNpp1/B4r2/4Pb2/Rb1kPQ2/qp4p1/N4n2/8 w - - 0 1)

Wynne, Frank Wilson

4th HM., West Sussex Gazette, 1929

1BR2K2/1n1pNpp1/B4r2/4Pb2/Rb1kPQ2/qp4p1/N4n2/8

#2

10 + 12

SOLUTION

  • SOUND
  • Sets
    • 1...Qb2
      • 2.Rxb4#
    • 1...Qxa2
      • 2.Rxb4#
    • 1...Rd6
      • 2.Sxf5#
    • 1...Sd1
      • 2.exf5#
    • 1...Sh1
      • 2.exf5#
    • 1...Sd3
      • 2.Rc4#
    • 1...Sg4
      • 2.exf5#
    • 1...Sd6
      • 2.Ba7#
  • Tries
    • 1.Ba7+?
      • 1...Sc5
        • 2.Bxc5#
      • 1...Rb6!
    • 1.Qd2+?
      • 1...Sd3
        • 2.Rc4#
        • 2.Qxd3#
      • 1...Kxe4!
    • 1.Qxf2+?
      • 1...Kxe4
        • 2.Sc3#
      • 1...gxf2!
    • 1.exf6?
      • threat
        • 2.Be5#
      • 1...Sd3
        • 2.Rc4#
      • 1...Sg4
        • 2.exf5#
      • 1...Sd6
        • 2.Ba7#
      • 1...d6
        • 2.Sxf5#
      • 1...gxf6!
  • Keys
    • 1.Rc3!
      • threat
        • 2.Qe3#
      • 1...Qc1
        • 2.Rxb4#
      • 1...Rd6
        • 2.Sxf5#
      • 1...Sd1
        • 2.exf5#
      • 1...Sd3
        • 2.Rc4#
      • 1...Sg4
        • 2.exf5#
      • 1...Sd6
        • 2.Ba7#
      • 1...d6
        • 2.Sc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 3
  • Sets
    • Q(b);N_GUARD::R(B),XB(e)
    • Q(b);N_GUARD,XS(A)::R(B),XB(e)
    • R(h);N_PINS(G)::S(G),XB(g)
    • S(a);N_GUARD::QAR(D)+P(C),XB(g)
    • S(a);SBLOCK::R1(I)
    • S(i);N_GUARD,N_PINS(G),S_CUTR(h)::B(H)
  • Tries
    • Try
      • B(H);CHECK
      • Vars
        • S(i);N_GUARD,N_PINS(G),P_SPINS(i)::B(H),XS(i)
      • Refutation
        • R(h);P_SPINR(h)
    • Try
      • Q(D);CHECK
      • Refutation
        • K(f);P-FLIGHT,XP(C)
    • Try
      • Q(D);CHECK,XS(a)
      • Vars
        • K(f);P-FLIGHT,XP(C)::S(A)
      • Refutation
        • P(d);XQ(D)
    • Try
      • P(E);XR(h)
      • Threat
        • B(H)
      • Vars
        • S(a);SBLOCK::R1(I)
        • S(a);N_GUARD::QAR(D)+P(C),XB(g)
        • S(i);N_GUARD,N_PINS(G)::B(H)
        • P(j);N_PINS(G)::S(G),XB(g)
      • Refutation
        • P(l);XP(E)
  • Actual
    • R(I);
    • Threat
      • QAB1(D)
    • Vars
      • Q(b);N_GUARD::R(B),XB(e)
      • R(h);N_PINS(G)::S(G),XB(g)
      • S(a);N_GUARD::QAR(D)+P(C),XB(g)
      • S(a);SBLOCK::R1(I)
      • S(i);N_GUARD,N_PINS(G),S_CUTR(h)::B(H)
      • P(j);N_PINS(G)::S(G)
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