MESON Chess Problem Database

Problem Display
PID: 193663 (3N3K/2BPp2B/bbnP4/3pkp1N/1pr4p/3Q1n1q/5P2/8 w - - 0 1)

Janet, Frank

Pittsburgh Gazette-Times, 1915

3N3K/2BPp2B/bbnP4/3pkp1N/1pr4p/3Q1n1q/5P2/8

#2

9 + 12

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Rc5
      • 2.Qe3#
    • 1...Bxf2
      • 2.dxe7#
    • 1...Be3
      • 2.dxe7#
    • 1...Bd4
      • 2.dxe7#
    • 1...Ba7
      • 2.dxe7#
    • 1...Sfd4
      • 2.f4#
    • 1...Scd4
      • 2.Qe3#
    • 1...e6
      • 2.Sf7#
  • Keys
    • 1.Bg8!
      • threat
        • 2.Qxd5#
      • 1...Rd4
        • 2.Sxc6#
      • 1...Rc5
        • 2.Qe3#
      • 1...Bd4
        • 2.dxe7#
      • 1...Sfd4
        • 2.f4#
      • 1...Scd4
        • 2.Qe3#
      • 1...d4
        • 2.Qe2#
      • 1...e6
        • 2.Sf7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 3
  • Sets
    • R(d);N_GUARD,S_CUTB(j)::QAR2(B)
    • B(j);N_GUARD,XP(A)::B(E)+P(D),XP(l)
    • B(j);N_GUARD::B(E)+P(D),XP(l)
    • S(a);OGATE::P(A)
    • S(k);S_CUTB(j),S_CUTR(d)::QAR2(B)
    • P(l);SBLOCK::S(H)
  • Actual
    • B(G);
    • Threat
      • QAR1(B),XP(f)
    • Vars
      • R(d);N_GUARD::S(H),XS(k)
      • R(d);N_GUARD,S_CUTB(j)::QAR2(B)
      • B(j);N_GUARD::B(E)+P(D),XP(l)
      • S(a);OGATE::P(A)
      • S(k);S_CUTB(j),S_CUTR(d)::QAR2(B)
      • P(f);SBLOCK,S_CUTB(j),S_CUTR(d)::QAR(B)
      • P(l);SBLOCK::S(H)
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