MESON Chess Problem Database

Problem Display
PID: 201470 (2b3q1/3nr1r1/R2b2pQ/4k1B1/N1p3B1/8/5N1K/3R4 w - - 0 1)

Mosely, Arthur James

1st Prize, Australian Columns, 1922

2b3q1/3nr1r1/R2b2pQ/4k1B1/N1p3B1/8/5N1K/3R4

#2

8 + 9

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Ba3
      • 2.Bf4#
    • 1...Bb4
      • 2.Bf4#
    • 1...Bc5
      • 2.Bf4#
    • 1...Bc7
      • 2.Bf4#
    • 1...Bb8
      • 2.Bf4#
    • 1...Sf6
      • 2.Bf4#
  • Tries
    • 1.Bh4?
      • threat
        • 2.Qe3#
        • 2.Qg5#
      • 1...g5
        • 2.Bg3#
        • 2.Qxd6#
      • 1...Qd5
        • 2.Qg5#
      • 1...Qe6
        • 2.Qe3#
      • 1...Qf7
        • 2.Qe3#
      • 1...Qf8
        • 2.Qe3#
      • 1...Ref7
        • 2.Qe3#
      • 1...Rgf7
        • 2.Qe3#
      • 1...Bc5
        • 2.Bg3#
        • 2.Qg5#
      • 1...Bb7
        • 2.Qg5#
      • 1...Sb6
        • 2.Qe3#
      • 1...Sf6
        • 2.Bg3#
      • 1...Sb8
        • 2.Qe3#
      • 1...Sf8
        • 2.Qe3#
      • 1...Sc5!
    • 1.Bf6+?
      • 1...Kxf6+
        • 2.Qf4#
      • 1...Sxf6!
  • Keys
    • 1.Bd2!
      • threat
        • 2.Bc3#
      • 1...Kd4+
        • 2.Bf4#
      • 1...Kd5+
        • 2.Bf4#
      • 1...Kf6+
        • 2.Qf4#
      • 1...Qd5
        • 2.Qf4#
      • 1...Bb4
        • 2.Bf4#
      • 1...Bc5
        • 2.Bf4#
      • 1...c3
        • 2.Bxc3#
      • 1...g5
        • 2.Qxd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 4
  • Sets
    • B(c);::B(F)
    • S(e);SBLOCK::B(F)
  • Tries
    • Try
      • B(F);
      • Threat
        • DUALS(2)
      • Vars
        • Q(i);::QAR2(H)
        • R(f);::QAR2(H)
        • R(g);::QAR2(H)
        • B(h);::QAR2(H)
        • S(e);::QAR2(H)
        • S(e);SBLOCK::B(F)
      • Refutation
        • S(e);
    • Try
      • B(F);CHECK
      • Vars
        • K(b);CHECK,P_SPINB(c),P_SPINP(d),S_FLIGHT,XB(F)::QAR2(H)
      • Refutation
        • S(e);XB(F)
  • Actual
    • B(F);
    • Threat
      • B(F)
    • Vars
      • K(b);CHECK,S_FLIGHT::R(A)+B(F)
      • K(b);CHECK,P-FLIGHT::R(A)+B(F)
      • K(b);CHECK,P_SPINB(c),P_SPINP(d),S_FLIGHT::QAR2(H)
      • Q(i);SBLOCK::QAB1(H)
      • B(c);::B(F)
      • P(a);::B(F),XP(a)
      • P(d);OGATE::QAB1(H),XB(c)
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