MESON Chess Problem Database

Problem Display
PID: 223202 (B1r1b3/8/1P2kP2/1n5Q/4N2B/3N3K/q3R2b/8 w - - 0 1)

Pradignat, Emile Leonard

Nashville Daily American, 1886

B1r1b3/8/1P2kP2/1n5Q/4N2B/3N3K/q3R2b/8

#2

9 + 6

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Qb1
      • 2.Qd5#
    • 1...Qd5
      • 2.Qxd5#
    • 1...Qa1
      • 2.Qd5#
    • 1...Qb2
      • 2.Qd5#
    • 1...Qc2
      • 2.Qd5#
    • 1...Qd2
      • 2.Qd5#
    • 1...Qxe2
      • 2.Qd5#
    • 1...Qa3
      • 2.Qd5#
    • 1...Qa4
      • 2.Qd5#
    • 1...Qa5
      • 2.Qd5#
    • 1...Qa6
      • 2.Qd5#
    • 1...Qa7
      • 2.Qd5#
    • 1...Rc4
      • 2.Qd5#
    • 1...Rc5
      • 2.Sdxc5#
    • 1...Rxa8
      • 2.Sdc5#
    • 1...Rb8
      • 2.Sdc5#
    • 1...Rd8
      • 2.Sdc5#
    • 1...Bd6
      • 2.Sec5#
    • 1...Bc7
      • 2.Sdc5#
    • 1...Bc6
      • 2.Sdc5#
    • 1...Bf7
      • 2.Qg4#
    • 1...Sd6
      • 2.Sec5#
    • 1...Sc7
      • 2.Sdc5#
  • Keys
    • 1.f7!
      • threat
        • 2.f8S#
      • 1...Kd7
        • 2.f8S#
      • 1...Bxf7
        • 2.Qg4#
      • 1...Qa3
        • 2.Qd5#
      • 1...Bd6
        • 2.Sec5#
      • 1...Bc6
        • 2.Sdc5#
      • 1...Bd7
        • 2.Qg6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 19
  • Sets
    • Q(a);N_GUARD::QAB1(F)
    • Q(a);N_GUARD::QAB1(F),XQ(a)
    • Q(a);N_GUARD,XR(A)::QAB1(F)
    • Q(a);N_GUARD,P_PINS(B)::QAB1(F)
    • R(e);S_CUTQ(a)::QAB1(F)
    • R(e);N_GUARD::S(B),XR(e)
    • R(e);N_GUARD,XB(I)::S(B)
    • R(e);N_GUARD::S(B)
    • B(b);SBLOCK::R(A)+S(D),DCHECK
    • B(b);S_CUTR(e)::S(B)
    • B(f);S_CUTR(e)::S(B)
    • B(f);SBLOCK::QAB(F)
    • S(c);SBLOCK::R(A)+S(D),DCHECK
    • S(c);S_CUTR(e)::S(B)
  • Actual
    • P(H);
    • Threat
      • P=S
    • Vars
      • K(d);S_FLIGHT::P=S
      • B(f);SBLOCK,XP(H)::QAB(F)
      • Q(a);N_GUARD,P_PINS(B)::QAB1(F)
      • B(b);SBLOCK::R(A)+S(D),DCHECK
      • B(f);S_CUTR(e)::S(B)
      • B(f);SBLOCK::QAR2(F)
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