MESON Chess Problem Database

Problem Display
PID: 96345 (8/2Qp4/KnpBk1P1/6PP/8/1P1N1ppq/1p1nb2N/1BbRR3 w - - 0 1)

Daniel, Arthur William

The Chess Problem, 1944

8/2Qp4/KnpBk1P1/6PP/8/1P1N1ppq/1p1nb2N/1BbRR3

#2

12 + 11

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Sdc4
      • 2.Sc5#
    • 1...Sbc4
      • 2.Sf4#
  • Tries
    • 1.Ba3?
      • threat
        • 2.Qe5#
      • 1...Kd5
        • 2.Qe5#
      • 1...Kf5
        • 2.Qe5#
      • 1...Qf5
        • 2.Qd6#
      • 1...Sbc4
        • 2.Sf4#
      • 1...d5
        • 2.Qf7#
      • 1...d6
        • 2.Qf7#
      • 1...Sdc4!
    • 1.Bb4?
      • threat
        • 2.Qe5#
      • 1...Kd5
        • 2.Qe5#
      • 1...Kf5
        • 2.Qe5#
      • 1...Qf5
        • 2.Qd6#
      • 1...Sbc4
        • 2.Sf4#
      • 1...d5
        • 2.Qf7#
      • 1...d6
        • 2.Qf7#
      • 1...Sdc4!
    • 1.Bc5?
      • threat
        • 2.Qe5#
      • 1...Kd5
        • 2.Qe5#
      • 1...Kf5
        • 2.Qe5#
      • 1...Qf5
        • 2.Qd6#
      • 1...Sbc4
        • 2.Sf4#
      • 1...d5
        • 2.Qf7#
      • 1...d6
        • 2.Qf7#
      • 1...Sdc4!
  • Keys
    • 1.Bf8!
      • threat
        • 2.Qe5#
      • 1...Kd5
        • 2.Qe5#
      • 1...Kf5
        • 2.Qe5#
      • 1...Sdc4
        • 2.Sc5#
      • 1...Qf5
        • 2.Qd6#
      • 1...Sbc4
        • 2.Sf4#
      • 1...d5
        • 2.Qf7#
      • 1...d6
        • 2.Qf7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • S(c);N_PINS(F)::S(F)
    • S(h);N_PINS(F)::S(F)
  • Tries
    • Try
      • B(J);
      • Threat
        • QAR1(L)
      • Vars
        • K(j);N_SPINB(d),S_FLIGHT::QAR1(L)
        • Q(g);SBLOCK::QAR1(L)
        • S(h);N_PINS(F)::S(F)
        • P(k);OGATE,SBLOCK::QAB1(L)
        • P(k);OGATE::QAB1(L)
      • Refutation
        • S(c);N_PINS(F)
    • Try
      • B(J);
      • Threat
        • QAR1(L)
      • Vars
        • K(j);N_SPINB(d),S_FLIGHT::QAR1(L)
        • Q(g);SBLOCK::QAR1(L)
        • S(h);N_PINS(F)::S(F)
        • P(k);OGATE,SBLOCK::QAB1(L)
        • P(k);OGATE::QAB1(L)
      • Refutation
        • S(c);N_PINS(F)
    • Try
      • B(J);
      • Threat
        • QAR1(L)
      • Vars
        • K(j);N_SPINB(d),S_FLIGHT::QAR1(L)
        • Q(g);SBLOCK::QAR1(L)
        • S(h);N_PINS(F)::S(F)
        • P(k);OGATE,SBLOCK::QAB1(L)
        • P(k);OGATE::QAB1(L)
      • Refutation
        • S(c);N_PINS(F)
  • Actual
    • B(J);
    • Threat
      • QAR1(L)
    • Vars
      • K(j);N_SPINB(d),S_FLIGHT::QAR1(L)
      • S(c);N_PINS(F)::S(F)
      • Q(g);SBLOCK::QAR1(L)
      • S(h);N_PINS(F)::S(F)
      • P(k);OGATE,SBLOCK::QAB1(L)
      • P(k);OGATE::QAB1(L)
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