MESON Chess Problem Database

Problem Display
PID: 145133 (8/pp2q3/2p1R3/Q7/4b3/p1Pk4/P1NB4/1BK5 w - - 0 1)

McCool, HH

3rd HM., Good Companions (March), 1914

8/pp2q3/2p1R3/Q7/4b3/p1Pk4/P1NB4/1BK5

#2

8 + 7

14868 Pirnie Collection 2012

SOLUTION

  • SOUND
  • Sets
    • 1...Kc4
      • 2.Se3#
    • 1...Bh1
      • 2.Sxa3#
    • 1...Bg2
      • 2.Sxa3#
    • 1...Bf3
      • 2.Sxa3#
    • 1...Bd5
      • 2.Sxa3#
    • 1...Bf5
      • 2.Sxa3#
    • 1...Bg6
      • 2.Sxa3#
    • 1...Bh7
      • 2.Sxa3#
  • Tries
    • 1.Rxe4?
      • threat
        • 2.Sa1#
        • 2.Se1#
        • 2.Sxa3#
        • 2.Sb4#
      • 1...Kxe4
        • 2.Se1#
        • 2.Sd4#
      • 1...Qb4
        • 2.Se1#
        • 2.Sxb4#
      • 1...Qxe4!
    • 1.Qh5?
      • threat
        • 2.Sxa3#
        • 2.Se3#
      • 1...Kc4
        • 2.Se3#
      • 1...Bf3
        • 2.Sxa3#
      • 1...Qb4!
  • Keys
    • 1.Qf5!
      • threat
        • 2.Qxe4#
        • 2.Qf1#
      • 1...Ke2
        • 2.Sd4#
      • 1...Kc4
        • 2.Se3#
      • 1...Qxe6
        • 2.Qf1#
      • 1...Bxf5
        • 2.Sxa3#
      • 1...Qb4
        • 2.Qf1#
      • 1...Qh4
        • 2.Qf1#
      • 1...Qf6
        • 2.Qxe4#
      • 1...Qf8
        • 2.Qxe4#
      • 1...Qf7
        • 2.Qxe4#
      • 1...Qh7
        • 2.Qf1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 6
  • Sets
    • K(b);S_FLIGHT::S(D)
    • B(c);::B(A)+S(D),XP(a)
  • Tries
    • Try
      • R(H);XB(c)
      • Threat
        • DUALS(4)
      • Refutation
        • Q(g);XR(H)
    • Try
      • Q(G);
      • Threat
        • DUALS(2)
      • Vars
        • K(b);S_FLIGHT::S(D)
        • B(c);::B(A)+S(D),XP(a)
      • Refutation
        • Q(g);
  • Actual
    • Q(G);P_PINB(c)
    • Threat
      • DUALS(2)
    • Vars
      • K(b);S_FLIGHT::S(D)
      • K(b);N_SPINB(c),S_FLIGHT::S(D)
      • Q(g);XR(H)::QAB(G)
      • B(c);N_SPINB(c),XQ(G)::B(A)+S(D),XP(a)
      • Q(g);::QAB(G)
      • Q(g);::QAB1(G),XB(c)
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