MESON Chess Problem Database

Problem Display
PID: 159721 (2bR4/1p1n1N2/1P6/1R2P3/2pkp3/3N4/1K1P1P2/3Q4 w - - 0 1)

Anonymous

BCPJ (June), 1919

2bR4/1p1n1N2/1P6/1R2P3/2pkp3/3N4/1K1P1P2/3Q4

#2

10 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Kxd3
      • 2.Rd5#
    • 1...cxd3
      • 2.Qa4#
    • 1...exd3
      • 2.Qg4#
  • Tries
    • 1.Sc1?
      • 1...e3
        • 2.Qg4#
      • 1...c3+!
    • 1.Se1?
      • 1...e3
        • 2.Qg4#
      • 1...c3+!
    • 1.Sb4?
      • threat
        • 2.Rd5#
      • 1...e3
        • 2.Qg4#
      • 1...c3+!
    • 1.Sg5?
      • 1...Kxd3
        • 2.Rd5#
      • 1...cxd3
        • 2.Qa4#
      • 1...exd3
        • 2.Qg4#
      • 1...e3
        • 2.dxe3#
      • 1...c3+!
  • Keys
    • 1.Sd6!
      • 1...c3+
        • 2.dxc3#
      • 1...Kxd3
        • 2.Rd5#
      • 1...Sxe5
        • 2.Sf5#
      • 1...Sxb6
        • 2.Sf5#
      • 1...cxd3
        • 2.Qa4#
      • 1...exd3
        • 2.Qg4#
      • 1...Sc5
        • 2.Sf5#
      • 1...Sf6
        • 2.Sf5#
      • 1...Sb8
        • 2.Sf5#
      • 1...Sf8
        • 2.Sf5#
      • 1...e3
        • 2.dxe3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
    • K(b);P-FLIGHT,XS(E)::R(F)
    • P(a);OGATEB,SBLOCK,XS(E)::QAR(A)
    • P(c);OGATEB,SBLOCK,XS(E)::QAR(A)
  • Tries
    • Try
      • S(E);
      • Vars
        • P(c);OGATEB::QAR(A)
      • Refutation
        • P(a);CHECK
    • Try
      • S(E);
      • Vars
        • P(c);OGATEB::QAR(A)
      • Refutation
        • P(a);CHECK
    • Try
      • S(E);
      • Threat
        • R1(F)
      • Vars
        • P(c);OGATEB::QAR(A)
      • Refutation
        • P(a);CHECK
    • Try
      • S(I);
      • Vars
        • K(b);P-FLIGHT,XS(E)::R(F)
        • P(a);OGATEB,SBLOCK,XS(E)::QAR(A)
        • P(c);OGATEB,SBLOCK,XS(E)::QAR(A)
        • P(c);OGATE::P(C),XP(c)
      • Refutation
        • P(a);CHECK
  • Actual
    • S(I);N_PINS(e)
    • Vars
      • P(a);CHECK,OGATE::P(C),XP(a)
      • K(b);P-FLIGHT,XS(E)::R(F)
      • S(e);XP(G)::R(J)+S(I),DCHECK
      • S(e);XP(H)::R(J)+S(I),DCHECK
      • P(a);OGATEB,SBLOCK,XS(E)::QAR(A)
      • P(c);OGATEB,SBLOCK,XS(E)::QAR(A)
      • S(e);::R(J)+S(I),DCHECK
      • P(c);OGATE::P(C),XP(c)
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