MESON Chess Problem Database

Problem Display
PID: 101444 (8/3Q4/5K2/P1P5/2kN1Rpp/P4p1q/bP5b/3B2B1 w - - 0 1)

Sparke, Arthur M

Good Companions, 1920

8/3Q4/5K2/P1P5/2kN1Rpp/P4p1q/bP5b/3B2B1

#2

10 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kd3
      • 2.Sb3#
    • 1...Kxc5
      • 2.Sb3#
      • 2.Se6#
      • 2.Qc6#
    • 1...g3
      • 2.Se2#
      • 2.Sb3#
      • 2.Sxf3#
      • 2.Sb5#
      • 2.Sf5#
      • 2.Se6#
  • Tries
    • 1.Ke5?
      • threat
        • 2.Qb5#
      • 1...Kd3
        • 2.Sb3#
      • 1...Kxc5
        • 2.Sb3#
        • 2.Se6#
        • 2.Qb5#
        • 2.Qc6#
        • 2.Qc8#
        • 2.Qc7#
      • 1...Bxf4+!
    • 1.Sc2+?
      • 1...Kb3
        • 2.Rb4#
        • 2.Qb5#
        • 2.Qb7#
      • 1...Bxf4!
    • 1.Sc6+?
      • 1...Kb5
        • 2.Qb7#
      • 1...Bxf4!
    • 1.Be2+?
      • 1...Kxc5
        • 2.Sb3#
        • 2.Se6#
        • 2.Qc6#
        • 2.b4#
      • 1...fxe2!
    • 1.Qa4+?
      • 1...Kd3
        • 2.Qc2#
      • 1...Kxc5
        • 2.Qc6#
      • 1...Kd5!
    • 1.Qe6+?
      • 1...Kxc5
        • 2.Qc6#
        • 2.b4#
      • 1...Kd3!
    • 1.Qd5+?
      • 1...Kd3
        • 2.Sb3#
      • 1...Kxd5!
  • Keys
    • 1.Ke6!
      • threat
        • 2.Qb5#
      • 1...Kd3+
        • 2.Sb3#
      • 1...Kxc5+
        • 2.Sb3#
      • 1...g3+
        • 2.Sf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(e);S_FLIGHT::QAR(J)+S(E)
  • Tries
    • Try
      • K(I);P_SPINR(F),S_FLIGHT
      • Threat
        • QAB1(J)
      • Vars
        • K(e);S_FLIGHT::QAR(J)+S(E)
      • Refutation
        • B(b);CHECK,XR(F)
    • Try
      • S(E);CHECK
      • Refutation
        • B(b);XR(F)
    • Try
      • S(E);CHECK
      • Vars
        • K(e);S_FLIGHT::QAR2(J)
      • Refutation
        • B(b);XR(F)
    • Try
      • B(A);CHECK
      • Refutation
        • P(c);XB(A)
    • Try
      • Q(J);CHECK
      • Vars
        • K(e);S_FLIGHT::QAB1(J)
        • K(e);OGATEB,P-FLIGHT,XP(H)::QAR1(J)
      • Refutation
        • K(e);S_FLIGHT
    • Try
      • Q(J);CHECK
      • Refutation
        • K(e);S_FLIGHT
    • Try
      • Q(J);CHECK
      • Vars
        • K(e);S_FLIGHT::QAR(J)+S(E)
      • Refutation
        • K(e);S_FLIGHT,XQ(J)
  • Actual
    • K(I);P-FLIGHT
    • Threat
      • QAB1(J)
    • Vars
      • K(e);CHECK,S_FLIGHT::QAR(J)+S(E)
      • K(e);CHECK,P-FLIGHT,XP(H)::B(B)+S(E),DCHECK
      • P(f);CHECK,S_CUTB(b)::R(F)+S(E)
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