MESON Chess Problem Database

Problem Display
PID: 84150 (2N5/7p/3Rp1p1/B1p1kp2/4B2Q/3P3P/7b/K2n1R2 w - - 0 1)

Abbott, Joseph William

Chess Chips, 1878

2N5/7p/3Rp1p1/B1p1kp2/4B2Q/3P3P/7b/K2n1R2

#2

9 + 8

6490 yacpdb 2009
15148 Sadier Collection 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Sb2
      • 2.Bc3#
    • 1...Sf2
      • 2.Bc3#
    • 1...Sc3
      • 2.Bxc3#
    • 1...Se3
      • 2.Bc3#
    • 1...c4
      • 2.d4#
    • 1...fxe4
      • 2.Qg5#
      • 2.Qf6#
      • 2.Qxe4#
    • 1...f4
      • 2.Qg5#
  • Tries
    • 1.Bc7?
      • threat
        • 2.Rd5#
        • 2.Rd7#
        • 2.Rd8#
      • 1...fxe4
        • 2.Rd7#
        • 2.Rd8#
        • 2.Qg5#
        • 2.Qf6#
        • 2.Qxe4#
      • 1...g5!
    • 1.Bd8?
      • threat
        • 2.Bf6#
        • 2.Qf6#
      • 1...Sf2
        • 2.Bf6#
      • 1...g5!
    • 1.Rxd1?
      • threat
        • 2.Bc3#
      • 1...fxe4
        • 2.Qg5#
      • 1...Bg1!
    • 1.Rxe6+?
      • 1...Kxe6
        • 2.Qe7#
      • 1...Kd4!
    • 1.Qe7?
      • threat
        • 2.Rd5#
        • 2.Qxe6#
        • 2.Qg7#
      • 1...fxe4
        • 2.Qg5#
        • 2.Qf6#
        • 2.Qxe6#
        • 2.Qg7#
      • 1...Sc3
        • 2.Bxc3#
        • 2.Qxe6#
        • 2.Qg7#
      • 1...Se3
        • 2.Bc3#
        • 2.Qxe6#
        • 2.Qg7#
      • 1...Sf2!
  • Keys
    • 1.Qh6!
      • threat
        • 2.Qg7#
      • 1...Kf6
        • 2.Rxf5#
      • 1...Sf2
        • 2.Bc3#

This is a version of 4543

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 5
  • Sets
    • S(a);N_GUARD::B(G)
    • S(a);N_GUARD::B(G),XS(a)
    • P(c);N_GUARD::P(C)
    • P(e);OGATEB::QAR2(F)
  • Tries
    • Try
      • B(G);
      • Threat
        • DUALS(3)
      • Refutation
        • P(g);
    • Try
      • B(G);
      • Threat
        • DUALS(2)
      • Vars
        • S(a);::B(G)
      • Refutation
        • P(g);
    • Try
      • R(B);XS(a)
      • Threat
        • B(G)
      • Vars
        • P(e);OGATEB,XB(E)::QAR2(F)
      • Refutation
        • B(b);
    • Try
      • R(H);CHECK,XP(f)
      • Vars
        • K(d);P-FLIGHT,XR(H)::QAR1(F)
      • Refutation
        • K(d);S_FLIGHT
    • Try
      • Q(F);P_PINP(f)
      • Threat
        • DUALS(3)
      • Refutation
        • S(a);
  • Actual
    • Q(F);
    • Threat
      • QAB(F)
    • Vars
      • K(d);P_SPINP(e),S_FLIGHT::R1(B),XP(e)
      • S(a);N_GUARD::B(G)
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