MESON Chess Problem Database

Problem Display
PID: 64636 (1b6/q5Q1/2B5/1b2R1R1/pr1k4/Npp5/4Pn1K/4B2n w - - 0 1)

Fink, Adolf Jay

Good Companions (February), 1919

1b6/q5Q1/2B5/1b2R1R1/pr1k4/Npp5/4Pn1K/4B2n

#2

8 + 10

3132 The Good Companion Two-Mover 1922

SOLUTION

  • SOUND
  • Sets
    • 1...Rc4
      • 2.Sxb5#
    • 1...Bd3
      • 2.e3#
    • 1...Bxe5+
      • 2.Qxe5#
    • 1...Sg3
      • 2.Bxf2#
      • 2.Re4#
    • 1...Sd1
      • 2.Rg4#
    • 1...Sd3
      • 2.e3#
    • 1...Sg4+
      • 2.Rxg4#
  • Tries
    • 1.Rg4+?
      • 1...Se4
        • 2.Rxe4#
      • 1...Sxg4+!
    • 1.Qd7+?
      • 1...Bd6
        • 2.Qxd6#
      • 1...Qxd7!
  • Keys
    • 1.Rg3!
      • threat
        • 2.Bxc3#
      • 1...Sg4+
        • 2.Rxg4#
      • 1...Bxe5
        • 2.Qxa7#
      • 1...Sxg3
        • 2.Bxf2#
      • 1...Qc5
        • 2.Re4#
      • 1...Rc4
        • 2.Sxb5#
      • 1...Bd3
        • 2.e3#
      • 1...Sd1
        • 2.Rg4#
      • 1...Sd3
        • 2.e3#
      • 1...Se4
        • 2.Rd5#
      • 1...c2
        • 2.Bc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • R(f);N_GUARD,SBLOCK::S(D),XB(h)
    • B(h);SBLOCK::P(B)
    • B(j);CHECK,OGATE,P_SPINB(j),XR(E)::QAB1(H),XB(j)
    • S(b);N_GUARD::R(F)
    • S(b);SBLOCK::P(B)
    • S(b);CHECK,N_GUARD::R(F),XS(b)
  • Tries
    • Try
      • R(F);CHECK
      • Vars
        • S(b);N_GUARD,P_SPINS(b)::R1(F),XS(b)
      • Refutation
        • S(b);CHECK,XR(F)
    • Try
      • Q(H);CHECK
      • Vars
        • B(j);N_GUARD,P_SPINB(j)::QAR2(H),XB(j)
      • Refutation
        • Q(i);XQ(H)
  • Actual
    • R(F);N_SPINR(E)
    • Threat
      • B(A),XP(d)
    • Vars
      • S(b);CHECK,N_GUARD::R(F),XS(b)
      • B(j);N_GUARD,P_PINR(F),P_SPINB(j),SBLOCK,XR(E)::QAB(H),XQ(i)
      • S(a);N_GUARD,XR(F)::B(A),XS(b)
      • Q(i);SBLOCK::QAB(H)+R(E),DCHECK
      • R(f);N_GUARD,SBLOCK::S(D),XB(h)
      • B(h);SBLOCK::P(B)
      • S(b);N_GUARD::R(F)
      • S(b);SBLOCK::P(B)
      • S(b);SBLOCK::QAB(H)+R(E),DCHECK
      • P(d);::B(A)
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