MESON Chess Problem Database

Problem Display
PID: 222711 (6B1/8/6K1/p1Npp3/p2k4/Q4p1R/4P3/4n3 w - - 0 1)

Dennis, Charles Edwin

Charleston Sunday News, 1883

6B1/8/6K1/p1Npp3/p2k4/Q4p1R/4P3/4n3

#2

6 + 7

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...fxe2
      • 2.Qc3#
    • 1...f2
      • 2.Qc3#
  • Tries
    • 1.Se6+?
      • 1...Ke4
        • 2.Rh4#
      • 1...Kc4!
    • 1.Sd7?
      • 1...Ke4
        • 2.Rh4#
      • 1...fxe2
        • 2.Qxa4#
      • 1...Sd3
        • 2.Qxd3#
      • 1...e4
        • 2.Qc5#
      • 1...Sc2
        • 2.Qd3#
      • 1...Sg2
        • 2.Qd3#
      • 1...f2
        • 2.Qxa4#
      • 1...Kc4!
  • Keys
    • 1.Se4!
      • 1...Kc4
        • 2.Qxa4#
      • 1...Kxe4
        • 2.Rh4#
      • 1...fxe2
        • 2.Qxa4#
      • 1...dxe4
        • 2.e3#
      • 1...Sd3
        • 2.Qxd3#
      • 1...Sc2
        • 2.Qd3#
      • 1...Sg2
        • 2.Qd3#
      • 1...f2
        • 2.Qxa4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 2
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • P(b);XP(A)::QAB1(B)
    • P(b);::QAB1(B)
  • Tries
    • Try
      • S(D);CHECK
      • Vars
        • K(d);P-FLIGHT::R(C)
      • Refutation
        • K(d);P-FLIGHT
    • Try
      • S(D);
      • Vars
        • K(d);P-FLIGHT::R(C)
        • P(b);XP(A)::QAR(B),XP(c)
        • S(a);N_GUARD::QAR1(B),XS(a)
        • P(g);SBLOCK::QAB1(B)
        • S(a);N_GUARD::QAR1(B)
        • P(b);::QAR(B),XP(c)
      • Refutation
        • K(d);P-FLIGHT,P_SPINP(f)
  • Actual
    • S(D);
    • Vars
      • K(d);P-FLIGHT,P_SPINP(f)::QAR2(B),XP(c)
      • K(d);OGATEB,P-FLIGHT,XS(D)::R(C)
      • P(b);XP(A)::QAR(B),XP(c)
      • P(f);SBLOCK,XS(D)::P(A)
      • S(a);N_GUARD::QAR1(B),XS(a)
      • S(a);N_GUARD::QAR1(B)
      • P(b);::QAR(B),XP(c)
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