MESON Chess Problem Database

Problem Display
PID: 2160 (8/7p/3Q3p/7B/1p2kB2/pP6/K7/8 w - - 0 1)

Carpenter, George Edward

Seaforth Expositor, 1868

8/7p/3Q3p/7B/1p2kB2/pP6/K7/8

#2

5 + 5

1679 American Chess Nuts 1868
5454 Near Snap 2013

SOLUTION

  • SOUND
  • Sets
    • 1...Kf5
      • 2.Qe5#
  • Tries
    • 1.Ka1?
      • 1...Kf5
        • 2.Qe5#
      • 1...a2!
    • 1.Kb1?
      • 1...Kf5
        • 2.Qe5#
      • 1...a2+!
    • 1.Bh2?
      • 1...Kf5
        • 2.Qe5#
      • 1...Ke3!
    • 1.Bg3?
      • 1...Kf5
        • 2.Qe5#
      • 1...Ke3!
    • 1.Be5?
      • 1...Ke3
        • 2.Qd4#
      • 1...Kf5!
    • 1.Bg5?
      • 1...Kf5
        • 2.Qd5#
      • 1...hxg5!
    • 1.Qxb4+?
      • 1...Kd3
        • 2.Qc4#
      • 1...Kd5
        • 2.Qc4#
      • 1...Kf5!
    • 1.Qc5?
      • 1...Kd3
        • 2.Qc4#
      • 1...Kxf4!
    • 1.Qd4+?
      • 1...Kf5
        • 2.Qe5#
      • 1...Kxd4!
    • 1.Qe6+?
      • 1...Kd3
        • 2.Qc4#
      • 1...Kd4
        • 2.Qc4#
      • 1...Kxf4!
  • Keys
    • 1.Qc7!
      • 1...Kd3
        • 2.Qc4#
      • 1...Kd4
        • 2.Qc4#
      • 1...Kd5
        • 2.Qc4#
      • 1...Kf5
        • 2.Qe5#

This anticipates 115455(1911), 17214(1925-1926), 5988(1926), 227834(1926)

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(c);S_FLIGHT::QAR1(E)
  • Tries
    • Try
      • K(A);P-FLIGHT
      • Vars
        • K(c);S_FLIGHT::QAR1(E)
      • Refutation
        • P(a);
    • Try
      • K(A);S_FLIGHT
      • Vars
        • K(c);S_FLIGHT::QAR1(E)
      • Refutation
        • P(a);CHECK
    • Try
      • B(C);
      • Vars
        • K(c);S_FLIGHT::QAR1(E)
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • B(C);
      • Vars
        • K(c);S_FLIGHT::QAR1(E)
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • B(C);
      • Vars
        • K(c);P-FLIGHT::QAB1(E)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • B(C);
      • Vars
        • K(c);S_FLIGHT::QAR2(E)
      • Refutation
        • P(d);XB(C)
    • Try
      • Q(E);CHECK,XP(b)
      • Vars
        • K(c);S_FLIGHT::QAB1(E)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(E);
      • Vars
        • K(c);S_FLIGHT::QAB1(E)
      • Refutation
        • K(c);P-FLIGHT,XB(C)
    • Try
      • Q(E);CHECK
      • Vars
        • K(c);S_FLIGHT::QAR1(E)
      • Refutation
        • K(c);P-FLIGHT,XQ(E)
    • Try
      • Q(E);CHECK
      • Vars
        • K(c);S_FLIGHT::QAB1(E)
        • K(c);P-FLIGHT::QAR1(E)
      • Refutation
        • K(c);P-FLIGHT,XB(C)
  • Actual
    • Q(E);
    • Vars
      • K(c);S_FLIGHT::QAB1(E)
      • K(c);P-FLIGHT::QAR1(E)
      • K(c);S_FLIGHT::QAR1(E)
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