MESON Chess Problem Database

Problem Display
PID: 148830 (2Q4B/1r1p4/Npbp4/3Pq3/2Bk3n/pRR3N1/r2p4/2bK4 w - - 0 1)

Fink, Adolf Jay

Good Companions (March), 1918

2Q4B/1r1p4/Npbp4/3Pq3/2Bk3n/pRR3N1/r2p4/2bK4

#2

9 + 12

SOLUTION

  • SOUND
  • Sets
    • 1...Qf6
      • 2.Bxf6#
    • 1...Qg7
      • 2.Bxg7#
    • 1...Qxh8
      • 2.Qxh8#
    • 1...Ba4
      • 2.Rd3#
    • 1...Bb5
      • 2.Rd3#
    • 1...Bxd5
      • 2.Rd3#
  • Tries
    • 1.Rc2?
      • threat
        • 2.Rd3#
      • 1...Qxh8
        • 2.Qxh8#
      • 1...Qf6
        • 2.Bxf6#
      • 1...Qg7
        • 2.Bxg7#
      • 1...Rxc2!
    • 1.Re3?
      • threat
        • 2.Re4#
      • 1...Bxd5
        • 2.Se2#
        • 2.Rbd3#
        • 2.Red3#
      • 1...Kxc4!
  • Keys
    • 1.Rb4!
      • threat
        • 2.Rd3#
      • 1...Ba4+
        • 2.Bb3#
      • 1...Kxc3
        • 2.Se2#
      • 1...Qxh8
        • 2.Qxh8#
      • 1...Qf6
        • 2.Bxf6#
      • 1...Qg7
        • 2.Bxg7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 2
  • Sets
    • Q(g);OGATEB::B(I),XQ(g)
    • Q(g);N_SPINQ(g),OGATE,XB(I)::QAB(H),XQ(g)
    • B(i);P_PINR(B)::R1(C)
    • B(i);::R1(C)
    • B(i);XP(F)::R1(C)
  • Tries
    • Try
      • R(C);
      • Threat
        • R1(B)
      • Vars
        • Q(g);N_SPINQ(g),OGATE,XB(I)::QAB(H),XQ(g)
        • Q(g);OGATEB::B(I),XQ(g)
      • Refutation
        • R(b);XR(C)
    • Try
      • R(C);
      • Threat
        • R1(C)
      • Refutation
        • K(e);N_SPINQ(g),P-FLIGHT,P_SPINB(i),XB(E)
  • Actual
    • R(B);
    • Threat
      • R1(C)
    • Vars
      • B(i);CHECK::R(B)+B(E)
      • K(e);S_FLIGHT,XR(C)::S(D)
      • Q(g);N_SPINQ(g),OGATE,XB(I)::QAB(H),XQ(g)
      • Q(g);OGATEB::B(I),XQ(g)
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