MESON Chess Problem Database

Problem Display
PID: 161394 (8/8/B3n3/N1pNrpb1/4kp2/2P5/Q7/5K2 w - - 0 1)

Planck, Charles

Auban Citizen, 1886

8/8/B3n3/N1pNrpb1/4kp2/2P5/Q7/5K2

#2

6 + 7

15351 SCPF/BCPS Black Books 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Kf3
      • 2.Qg2#
    • 1...Rxd5
      • 2.Qe2#
  • Tries
    • 1.Sf6+?
      • 1...Ke3
        • 2.Qe2#
        • 2.Qf2#
      • 1...Kf3
        • 2.Qf2#
      • 1...Bxf6!
    • 1.Bd3+?
      • 1...Kf3
        • 2.Qg2#
      • 1...Kxd3!
    • 1.Bc4?
      • threat
        • 2.Qe2#
      • 1...Kf3
        • 2.Qg2#
      • 1...f3
        • 2.Qb1#
        • 2.Qc2#
      • 1...Sd4!
    • 1.Qc2+?
      • 1...Kf3
        • 2.Qg2#
      • 1...Kxd5!
  • Keys
    • 1.Sc4!
      • threat
        • 2.Sd2#
      • 1...Kd3
        • 2.Qb1#
      • 1...Kf3
        • 2.Qg2#
      • 1...Kxd5
        • 2.Bb7#
      • 1...Rxd5
        • 2.Qe2#
      • 1...f3
        • 2.Sd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::QAB1(B)
    • R(d);SBLOCK,XS(E)::QAR2(B)
  • Tries
    • Try
      • S(E);CHECK
      • Vars
        • K(a);S_FLIGHT::QAR1(B)
      • Refutation
        • B(f);XS(E)
    • Try
      • B(F);CHECK
      • Vars
        • K(a);S_FLIGHT::QAB1(B)
      • Refutation
        • K(a);S_FLIGHT,XB(F)
    • Try
      • B(F);
      • Threat
        • QAR2(B)
      • Vars
        • K(a);S_FLIGHT::QAB1(B)
      • Refutation
        • S(g);
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);S_FLIGHT::QAB1(B)
      • Refutation
        • K(a);S_FLIGHT,XS(E)
  • Actual
    • S(D);
    • Threat
      • S(D)
    • Vars
      • K(a);S_FLIGHT::QAB(B)
      • K(a);S_FLIGHT::QAB1(B)
      • K(a);OGATEB,S_FLIGHT,XS(E)::B(F)
      • R(d);SBLOCK,XS(E)::QAR2(B)
      • P(b);SBLOCK::S(D)
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