MESON Chess Problem Database

Problem Display
PID: 156101 (7N/1npKP2q/2p4p/n3k2p/1Q2p3/R3N3/8/b4R2 w - - 0 1)

Branch, William Shelley

Cheltenham Examiner, 1908

7N/1npKP2q/2p4p/n3k2p/1Q2p3/R3N3/8/b4R2

#2

7 + 10

15351 SCPF/BCPS Black Books 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Qf5+
      • 2.Rxf5#
    • 1...Qg6
      • 2.Sxg6#
    • 1...Qg8
      • 2.Rf5#
    • 1...Qf7
      • 2.Sxf7#
    • 1...Qg7
      • 2.Rf5#
    • 1...Qxh8
      • 2.Rf5#
    • 1...Bb2
      • 2.Qxb2#
    • 1...Bc3
      • 2.Qxc3#
    • 1...Sc5+
      • 2.Qxc5#
    • 1...Sd6
      • 2.Qc5#
    • 1...Sd8
      • 2.Qc5#
  • Tries
    • 1.Rxa5+?
      • 1...Sxa5
        • 2.Qc5#
      • 1...Sc5+
        • 2.Rxc5#
        • 2.Qxc5#
      • 1...c5!
  • Keys
    • 1.Rd3!
      • 1...Qf5+
        • 2.Rxf5#
      • 1...Qxe7+
        • 2.Qxe7#
      • 1...Sc5+
        • 2.Qxc5#
      • 1...Qxh8
        • 2.Rf5#
      • 1...exd3
        • 2.Qf4#
      • 1...Qg6
        • 2.Sxg6#
      • 1...Qg8
        • 2.Rf5#
      • 1...Qf7
        • 2.Sxf7#
      • 1...Qg7
        • 2.Rf5#
      • 1...Bb2
        • 2.Qxb2#
      • 1...Bc3
        • 2.Qxc3#
      • 1...Bd4
        • 2.Qxd4#
      • 1...Sb3
        • 2.Sc4#
      • 1...Sc4
        • 2.Sxc4#
      • 1...Sd6
        • 2.Qc5#
      • 1...Sd8
        • 2.Qc5#
      • 1...h4
        • 2.Sg4#
      • 1...c5
        • 2.Rd5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
    • Q(j);CHECK,N_GUARD,N_PINP(F)::R1(A),XQ(j)
    • Q(j);N_GUARD,N_PINP(F)::S(G),XQ(j)
    • Q(j);N_GUARD,N_PINP(F)::R1(A)
    • Q(j);N_GUARD::S(G),XQ(j)
    • Q(j);N_GUARD::R1(A)
    • Q(j);N_GUARD,N_PINP(F),XS(G)::R1(A)
    • B(a);N_GUARD::QAB(D),XB(a)
    • S(h);CHECK,N_GUARD::QAR2(D),XS(h)
    • S(h);N_GUARD::QAR2(D)
  • Tries
    • Try
      • R(B);CHECK,XS(c)
      • Vars
        • S(h);N_GUARD,XR(B)::QAR2(D)
      • Refutation
        • P(f);P_SPINP(f)
  • Actual
    • R(B);
    • Vars
      • Q(j);CHECK,N_GUARD,N_PINP(F)::R1(A),XQ(j)
      • Q(j);CHECK,OGATE,XP(F)::QAR2(D),XQ(j)
      • S(h);CHECK,N_GUARD::QAR2(D),XS(h)
      • Q(j);N_GUARD,N_PINP(F),XS(G)::R1(A)
      • P(b);OGATE,XR(B)::QAB1(D)
      • Q(j);N_GUARD,N_PINP(F)::S(G),XQ(j)
      • Q(j);N_GUARD,N_PINP(F)::R1(A)
      • Q(j);N_GUARD::S(G),XQ(j)
      • Q(j);N_GUARD::R1(A)
      • B(a);N_GUARD::QAB(D),XB(a)
      • B(a);N_GUARD::QAB1(D),XB(a)
      • S(c);N_GUARD::S(C)
      • S(c);N_GUARD::S(C),XS(c)
      • S(h);N_GUARD::QAR2(D)
      • P(e);N_GUARD::S(C)
      • P(f);N_GUARD::R1(B)
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