MESON Chess Problem Database

Problem Display
PID: 155110 (8/4N3/1P1k4/2p2Bp1/2p3p1/2K1R1qb/3N3Q/4b2n w - - 0 1)

Williams, Philip Hamilton

Illustrated Weekly News, 1907

(First published on Sat Dec 14 1907)

8/4N3/1P1k4/2p2Bp1/2p3p1/2K1R1qb/3N3Q/4b2n

#2

7 + 9

15351 SCPF/BCPS Black Books 2015

SOLUTION

  • SOUND
  • Sets
    • 1...Qe5+
      • 2.Qxe5#
    • 1...Bxd2+
      • 2.Qxd2#
    • 1...Bf2
      • 2.Sxc4#
    • 1...Bf1
      • 2.Qh6#
    • 1...Bg2
      • 2.Qh6#
    • 1...Sf2
      • 2.Qxg3#
  • Tries
    • 1.Kc2?
      • threat
        • 2.Sxc4#
      • 1...Bxd2
        • 2.Qxd2#
      • 1...Qe5
        • 2.Qxe5#
      • 1...Bf1
        • 2.Qh6#
      • 1...c3
        • 2.Sc4#
      • 1...Qxh2!
    • 1.Qxg3+?
      • 1...Bxg3
        • 2.Sxc4#
      • 1...Sxg3!
  • Keys
    • 1.Bc8!
      • 1...Qe5+
        • 2.Qxe5#
      • 1...Bxd2+
        • 2.Qxd2#
      • 1...Qxh2
        • 2.Re6#
      • 1...Qf4
        • 2.Re6#
      • 1...Bf2
        • 2.Sxc4#
      • 1...Bf1
        • 2.Qh6#
      • 1...Bg2
        • 2.Qh6#
      • 1...Sf2
        • 2.Qxg3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • Q(c);CHECK,N_PINR(D),OGATE::QAB1(B),XQ(c)
    • B(a);CHECK,OGATE,XS(A)::QAR(B),XB(a)
    • B(a);N_PINS(A)::S(A),XP(e)
    • B(d);OGATE::QAR(B)
    • S(b);N_GUARD,S_CUTB(a)::QAB(B),XQ(c)
  • Tries
    • Try
      • K(C);N_SPINR(D),N_SPINS(A),P-FLIGHT
      • Threat
        • S(A),XP(e)
      • Vars
        • B(a);OGATE,XS(A)::QAR(B),XB(a)
        • Q(c);OGATE::QAB1(B),XQ(c)
        • B(d);OGATE::QAR(B)
        • P(e);::S(A)
      • Refutation
        • Q(c);N_SPINQ(c),P_PINS(A),XQ(B)
    • Try
      • Q(B);CHECK,N_SPINR(D),XQ(c)
      • Vars
        • B(a);N_PINS(A),XQ(B)::S(A),XP(e)
      • Refutation
        • S(b);XQ(B)
  • Actual
    • B(E);
    • Vars
      • Q(c);CHECK,N_PINR(D),OGATE::QAB1(B),XQ(c)
      • B(a);CHECK,OGATE,XS(A)::QAR(B),XB(a)
      • Q(c);N_PINR(D),N_SPINQ(c),XQ(B)::R1(D)
      • Q(c);N_PINR(D)::R1(D)
      • B(a);N_PINS(A)::S(A),XP(e)
      • B(d);OGATE::QAR(B)
      • S(b);N_GUARD,S_CUTB(a)::QAB(B),XQ(c)
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