MESON Chess Problem Database

Problem Display
PID: 224545 (1R2B3/3p4/3K4/4np2/1pkNbRP1/3n4/P2pN3/3r4 w - - 0 1)

Avery, Charles H

Nashville Daily American, 1888

1R2B3/3p4/3K4/4np2/1pkNbRP1/3n4/P2pN3/3r4

#2

8 + 9

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...b3
      • 2.axb3#
  • Tries
    • 1.Sc6?
      • threat
        • 2.Sa5#
      • 1...Sf7+
        • 2.Bxf7#
      • 1...Sxf4
        • 2.Sxe5#
      • 1...Sxc6
        • 2.Bf7#
      • 1...Sc1
        • 2.Sxe5#
      • 1...Se1
        • 2.Sxe5#
      • 1...Sb2
        • 2.Sxe5#
      • 1...Sf2
        • 2.Sxe5#
      • 1...Sc5
        • 2.Sxe5#
      • 1...dxc6!
    • 1.Bf7+?
      • 1...Bd5
        • 2.Bxd5#
      • 1...Sxf7+!
  • Keys
    • 1.Sf3!
      • 1...Sf7+
        • 2.Bxf7#
      • 1...Sxf4
        • 2.Sxe5#
      • 1...Sxf3
        • 2.Bf7#
      • 1...Sxg4
        • 2.Bf7#
      • 1...fxg4
        • 2.Rxe4#
      • 1...Sc1
        • 2.Sxe5#
      • 1...Se1
        • 2.Sxe5#
      • 1...Sb2
        • 2.Sxe5#
      • 1...Sf2
        • 2.Sxe5#
      • 1...Sc5
        • 2.Sxe5#
      • 1...Ra1
        • 2.Sxd2#
      • 1...Rb1
        • 2.Sxd2#
      • 1...Rc1
        • 2.Sxd2#
      • 1...Re1
        • 2.Sxd2#
      • 1...Rf1
        • 2.Sxd2#
      • 1...Rg1
        • 2.Sxd2#
      • 1...Rh1
        • 2.Sxd2#
      • 1...Sc6
        • 2.Bf7#
      • 1...Sg6
        • 2.Bf7#
      • 1...b3
        • 2.axb3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 19
    • REMOVED MATES = 0
  • Sets
    • P(d);OGATE::P(A),XP(d)
  • Tries
    • Try
      • S(C);P_PINB(f)
      • Threat
        • S(C)
      • Vars
        • S(g);CHECK,N_GUARD::B(H),XS(g)
        • S(c);N_GUARD,N_SPINB(f),XR(D)::S(C),XS(g)
        • S(g);N_GUARD,XS(C)::B(H)
        • S(c);N_GUARD::S(C),XS(g)
      • Refutation
        • P(i);XS(C)
    • Try
      • B(H);CHECK
      • Vars
        • B(f);N_GUARD,P_SPINB(f)::B(H),XB(f)
      • Refutation
        • S(g);CHECK,XB(H)
  • Actual
    • S(C);P_PINB(f)
    • Vars
      • S(g);CHECK,N_GUARD::B(H),XS(g)
      • S(c);N_GUARD,N_SPINB(f),XR(D)::S(C),XS(g)
      • S(g);N_GUARD,XS(C)::B(H)
      • S(g);N_GUARD,XP(E)::B(H)
      • P(h);N_GUARD,XP(E)::R(D),XB(f)
      • S(c);N_GUARD::S(C),XS(g)
      • R(a);N_GUARD::S(C),XP(b)
      • S(g);N_GUARD::B(H)
      • P(d);OGATE::P(A),XP(d)
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