MESON Chess Problem Database

Problem Display
PID: 11184 (8/b1p4r/2p3p1/2BkNp2/2N3n1/4P1q1/B1Q5/K1Rn4 w - - 0 1)

Dobbs, Gilbert S

Chess, 1937

8/b1p4r/2p3p1/2BkNp2/2N3n1/4P1q1/B1Q5/K1Rn4

#2

8 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Qxe5+
      • 2.Sb2#
    • 1...Sxe5
      • 2.Sb6#
  • Tries
    • 1.Qd2+?
      • 1...Ke4
        • 2.Bb1#
        • 2.Qd3#
        • 2.Qd4#
      • 1...Kxc5
        • 2.Qa5#
      • 1...Ke6!
  • Keys
    • 1.Qa4!
      • threat
        • 2.Qxc6#
      • 1...Qxe5+
        • 2.Sb2#
      • 1...Ke4
        • 2.Qxc6#
      • 1...Kxc5
        • 2.Qa5#
      • 1...Ke6
        • 2.Qxc6#
      • 1...Sxe5
        • 2.Sb6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • Q(b);CHECK,SBLOCK,XS(H)::B(C)+S(F)
    • S(c);SBLOCK,XS(H)::B(C)+S(F),DCHECK
  • Tries
    • Try
      • Q(D);CHECK
      • Vars
        • K(d);OGATEB,P-FLIGHT,XB(G)::QAR2(D)
      • Refutation
        • K(d);S_FLIGHT
  • Actual
    • Q(D);
    • Threat
      • QAB1(D),XP(f)
    • Vars
      • Q(b);CHECK,SBLOCK,XS(H)::B(C)+S(F)
      • K(d);S_FLIGHT::QAB(D),XP(f)
      • K(d);OGATEB,P-FLIGHT,XB(G)::QAR2(D)
      • K(d);S_FLIGHT::QAR2(D),XP(f)
      • S(c);SBLOCK,XS(H)::B(C)+S(F),DCHECK
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