MESON Chess Problem Database

Problem Display
PID: 9313 (Q7/8/2B5/b1p5/1k6/2p5/2K5/8 w - - 0 1)

Carpenter, George Edward

Dubuque Chess Journal, 1875

Q7/8/2B5/b1p5/1k6/2p5/2K5/8

#2

3 + 4

3757 Schachminiaturen I 1902
5501 Chess Cameos 1936
70 American Chess Problemist 1949
2012 Miniature Chess Problems from Many Countries 1981
145 StrateGems 2006

SOLUTION

  • SOUND
  • Sets
    • 1...Ka3
      • 2.Qxa5#
    • 1...Bb6
      • 2.Qa4#
    • 1...Bc7
      • 2.Qa4#
    • 1...Bd8
      • 2.Qa4#
    • 1...c4
      • 2.Qf8#
  • Tries
    • 1.Be8?
      • 1...Ka3
        • 2.Qxa5#
      • 1...Kc4
        • 2.Qe4#
      • 1...Bb6
        • 2.Qa4#
      • 1...Bc7
        • 2.Qa4#
      • 1...Bd8
        • 2.Qa4#
      • 1...c4!
    • 1.Qxa5+?
      • 1...Kc4
        • 2.Qxc3#
        • 2.Qa4#
      • 1...Kxa5!
    • 1.Qa6?
      • 1...Ka3
        • 2.Qxa5#
      • 1...Bb6
        • 2.Qa4#
      • 1...Bc7
        • 2.Qa4#
      • 1...Bd8
        • 2.Qa4#
      • 1...c4!
    • 1.Qa7?
      • 1...Ka3
        • 2.Qxa5#
      • 1...Bb6
        • 2.Qa4#
      • 1...Bc7
        • 2.Qa4#
      • 1...Bd8
        • 2.Qa4#
      • 1...c4
        • 2.Qe7#
      • 1...Kc4!
    • 1.Qb8+?
      • 1...Ka3
        • 2.Qb3#
      • 1...Kc4
        • 2.Qf4#
      • 1...Bb6!
    • 1.Qh8?
      • threat
        • 2.Qxc3#
      • 1...Kc4
        • 2.Qh4#
      • 1...c4
        • 2.Qf8#
      • 1...Ka3!
  • Keys
    • 1.Bd7!
      • 1...Ka3
        • 2.Qxa5#
      • 1...Kc4
        • 2.Qe4#
      • 1...Bb6
        • 2.Qa4#
      • 1...Bc7
        • 2.Qa4#
      • 1...Bd8
        • 2.Qa4#
      • 1...c4
        • 2.Qf8#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(b);P_SPINB(c),S_FLIGHT::QAR2(C),XB(c)
    • B(c);OGATE::QAR1(C)
    • P(d);OGATEB,SBLOCK::QAB(C)
  • Tries
    • Try
      • B(B);
      • Vars
        • K(b);P_SPINB(c),S_FLIGHT::QAR2(C),XB(c)
        • K(b);P-FLIGHT::QAR2(C)
        • B(c);OGATE::QAR1(C)
      • Refutation
        • P(d);
    • Try
      • Q(C);CHECK,XB(c)
      • Refutation
        • K(b);S_FLIGHT,XQ(C)
    • Try
      • Q(C);
      • Vars
        • K(b);P_SPINB(c),S_FLIGHT::QAR2(C),XB(c)
        • B(c);OGATE::QAR1(C)
      • Refutation
        • P(d);
    • Try
      • Q(C);
      • Vars
        • K(b);P_SPINB(c),S_FLIGHT::QAR2(C),XB(c)
        • B(c);OGATE::QAR1(C)
        • P(d);OGATEB,SBLOCK::QAB(C)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(C);CHECK
      • Vars
        • K(b);OGATE,S_FLIGHT::QAR1(C)
        • K(b);P-FLIGHT::QAR(C)
      • Refutation
        • B(c);P_SPINB(c)
    • Try
      • Q(C);
      • Threat
        • QAB1(C),XP(a)
      • Vars
        • K(b);P-FLIGHT::QAR(C)
        • P(d);OGATEB,SBLOCK::QAB(C)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • B(B);
    • Vars
      • K(b);P_SPINB(c),S_FLIGHT::QAR2(C),XB(c)
      • K(b);P-FLIGHT::QAR2(C)
      • B(c);OGATE::QAR1(C)
      • P(d);OGATEB,SBLOCK::QAB(C)
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