MESON Chess Problem Database

Problem Display
PID: 158510 (1Qn5/B6B/K1R5/2Pp4/p1Nk2b1/2RN2r1/4q3/8 w - - 0 1)

Andrew, Frederick William

Daily News, 1895

(First published on Mon Apr 29 1895)

1Qn5/B6B/K1R5/2Pp4/p1Nk2b1/2RN2r1/4q3/8

#2

9 + 7

15351 SCPF/BCPS Black Books 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Qd1
      • 2.Qe5#
    • 1...Qf1
      • 2.Qe5#
    • 1...Qxd3
      • 2.Qe5#
    • 1...Qf3
      • 2.Qe5#
    • 1...Qa2
      • 2.Qe5#
    • 1...Qb2
      • 2.Qe5#
    • 1...Qc2
      • 2.Qe5#
    • 1...Qd2
      • 2.Qe5#
    • 1...Qf2
      • 2.Qe5#
    • 1...Qg2
      • 2.Qe5#
    • 1...Qh2
      • 2.Qe5#
    • 1...Qe5
      • 2.Qxe5#
  • Keys
    • 1.Se3!
      • threat
        • 2.Qe5#
      • 1...Qxd3+
        • 2.Rxd3#
      • 1...Kxc3
        • 2.Qb4#
      • 1...Kxe3
        • 2.Qf4#
      • 1...Qxe3
        • 2.Qb4#
      • 1...Rxe3
        • 2.Qb4#
      • 1...Sd6
        • 2.cxd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 5
    • REMOVED MATES = 11
  • Sets
    • Q(a);N_GUARD::QAB1(I)
    • Q(a);N_GUARD,P_PINS(C),XS(B)::QAB1(I)
    • Q(a);N_GUARD::QAB1(I),XQ(a)
  • Actual
    • S(C);P_SPINS(B)
    • Threat
      • QAB1(I)
    • Vars
      • Q(a);CHECK,OGATE,XS(B)::R1(A),XQ(a)
      • K(d);S_FLIGHT,XR(A)::QAB1(I)
      • K(d);S_FLIGHT,XS(C)::QAB1(I)
      • Q(a);N_PINS(B),SBLOCK,XS(C)::QAR2(I)
      • R(b);SBLOCK,XS(C)::QAR2(I)
      • S(g);OGATE::B(G)+P(D),XS(g)
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