MESON Chess Problem Database

Problem Display
PID: 119766 (8/3N1p2/5p2/pP1N1Pp1/P1p1k1P1/2P5/3P3Q/7K w - - 0 1)

Aliquis, H

Bohemia, 1901

8/3N1p2/5p2/pP1N1Pp1/P1p1k1P1/2P5/3P3Q/7K

#2

10 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kf3
      • 2.Qg2#
  • Tries
    • 1.Se3?
      • 1...Kd3
        • 2.Sc5#
      • 1...Kf3!
    • 1.S5xf6+?
      • 1...Kf3
        • 2.Se5#
      • 1...Kd3!
    • 1.Sc5+?
      • 1...Kf3
        • 2.Qg2#
      • 1...Kxd5!
    • 1.S7b6?
      • threat
        • 2.Qe2#
      • 1...Kf3
        • 2.Qg2#
      • 1...Kd3!
    • 1.S7xf6+?
      • 1...Kf3
        • 2.Qg2#
      • 1...Kd3!
    • 1.Qg1?
      • 1...Kf3
        • 2.Qg2#
      • 1...Kxd5
        • 2.Qd4#
      • 1...Kd3!
    • 1.Qf2?
      • 1...Kxd5
        • 2.Qd4#
      • 1...Kd3!
    • 1.d3+?
      • 1...Kxd3
        • 2.Sc5#
      • 1...Kf3
        • 2.Qg2#
      • 1...cxd3
        • 2.Qg2#
      • 1...Kxd5!
  • Keys
    • 1.d4!
      • 1...Kd3
        • 2.Sc5#
      • 1...Kf3
        • 2.Qg2#
      • 1...Kxd5
        • 2.Sxf6#
      • 1...cxd4 ep
        • 2.Qg2#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(b);S_FLIGHT::QAB1(C)
  • Tries
    • Try
      • S(H);
      • Vars
        • K(b);S_FLIGHT::S(J)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • S(H);CHECK,XP(e)
      • Vars
        • K(b);S_FLIGHT::S(J)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • S(J);CHECK
      • Vars
        • K(b);S_FLIGHT::QAB1(C)
      • Refutation
        • K(b);S_FLIGHT,XS(H)
    • Try
      • S(J);
      • Threat
        • QAR2(C)
      • Vars
        • K(b);S_FLIGHT::QAB1(C)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • S(J);CHECK,XP(e)
      • Vars
        • K(b);S_FLIGHT::QAB1(C)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(C);
      • Vars
        • K(b);S_FLIGHT::QAB1(C)
        • K(b);S_FLIGHT,XS(H)::QAR1(C)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(C);
      • Vars
        • K(b);S_FLIGHT,XS(H)::QAR1(C)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • P(B);CHECK
      • Vars
        • K(b);S_FLIGHT,XP(B)::S(J)
        • K(b);S_FLIGHT::QAB1(C)
        • P(a);SBLOCK,XP(B)::QAB(C)
      • Refutation
        • K(b);S_FLIGHT,XS(H)
  • Actual
    • P(B);
    • Vars
      • K(b);S_FLIGHT::S(J)
      • K(b);S_FLIGHT::QAB1(C)
      • K(b);S_FLIGHT,XS(H)::S(J),XP(e)
      • P(a);EP,XP(B)::QAB(C)
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