MESON Chess Problem Database

Problem Display
PID: 149678 (1nK3b1/pPPP3r/3kP1N1/QPq1R1b1/4P3/B7/8/2r5 w - - 0 1)

Stephenson, Brian D

Hull Chess Club Magazine, 1995

1nK3b1/pPPP3r/3kP1N1/QPq1R1b1/4P3/B7/8/2r5

#2

11 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Ra1
      • 2.Bxc5#
    • 1...Rb1
      • 2.Bxc5#
    • 1...Rd1
      • 2.Bxc5#
    • 1...Re1
      • 2.Bxc5#
    • 1...Rf1
      • 2.Bxc5#
    • 1...Rg1
      • 2.Bxc5#
    • 1...Rch1
      • 2.Bxc5#
    • 1...Bd2
      • 2.Qxd2#
    • 1...Bh4
      • 2.Qd2#
    • 1...Bf6
      • 2.Qd2#
    • 1...Be7
      • 2.Qd2#
    • 1...Bd8
      • 2.Qd2#
    • 1...Sa6
      • 2.Qxa6#
  • Tries
    • 1.Qb6+?
      • 1...Sc6
        • 2.Qxc6#
      • 1...axb6!
    • 1.Qa6+?
      • 1...Sc6
        • 2.Qxc6#
      • 1...Sxa6!
    • 1.d8Q+?
      • 1...Bxd8
        • 2.Qd2#
      • 1...Sd7
        • 2.Qa6#
      • 1...Rd7!
    • 1.d8R+?
      • 1...Bxd8
        • 2.Qd2#
      • 1...Sd7
        • 2.Qa6#
      • 1...Rd7!
  • Keys
    • 1.d8S!
      • threat
        • 2.Rd5#
      • 1...Rxc7+
        • 2.Qxc7#
      • 1...Bxe6+
        • 2.Rxe6#
      • 1...Bxd8
        • 2.Qd2#
      • 1...Rd1
        • 2.Bxc5#

This is after

After C. S. Kipping, Hull Times, 1922.

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 11
  • Sets
    • R(a);N_GUARD::B(A),XQ(b)
    • B(c);N_GUARD::QAR(C),XB(c)
    • B(c);N_GUARD::QAR(C)
    • S(g);N_GUARD::QAR(C),XS(g)
  • Tries
    • Try
      • Q(C);CHECK
      • Vars
        • S(g);N_GUARD,N_PINP(I),P_SPINS(g)::QAR1(C),XS(g)
      • Refutation
        • P(e);XQ(C)
    • Try
      • Q(C);CHECK
      • Vars
        • S(g);N_GUARD,N_PINP(I),P_SPINS(g)::QAR1(C),XS(g)
      • Refutation
        • S(g);XQ(C)
    • Try
      • P(J);CHECK
      • Vars
        • B(c);XQ(J)::QAR(C)
        • S(g);P_SPINS(g)::QAR(C)
      • Refutation
        • R(f);P_SPINR(f)
    • Try
      • P(J);CHECK
      • Vars
        • B(c);XR(J)::QAR(C)
        • S(g);P_SPINS(g)::QAR(C)
      • Refutation
        • R(f);P_SPINR(f)
  • Actual
    • P(J);
    • Threat
      • R1(E)
    • Vars
      • R(f);CHECK,OGATE,XP(I)::QAB1(C),XR(f)
      • B(h);CHECK,OGATE,XP(F)::R1(E),XB(h)
      • B(c);N_GUARD,XS(J)::QAR(C)
      • R(a);N_GUARD::B(A),XQ(b)
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