MESON Chess Problem Database

Problem Display
PID: 175627 (1R6/Q3p2K/5k2/3P4/3N4/6NP/8/7B w - - 0 1)

Grunewald, Henry

Charleston Sunday News, 1900

1R6/Q3p2K/5k2/3P4/3N4/6NP/8/7B

#2

8 + 2

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...e5
      • 2.Se4#
      • 2.Qg7#
    • 1...e6
      • 2.Qg7#
  • Tries
    • 1.Sb5?
      • 1...Ke5
        • 2.Qd4#
      • 1...Kf7
        • 2.Qf2#
      • 1...e5
        • 2.Qg7#
      • 1...e6
        • 2.Qg7#
      • 1...Kg5!
    • 1.Sdf5?
      • threat
        • 2.Qxe7#
      • 1...Ke5
        • 2.Qd4#
      • 1...Kf7
        • 2.Qxe7#
      • 1...e5
        • 2.Qe7#
        • 2.Qg7#
      • 1...e6
        • 2.Qg7#
      • 1...Kg5!
    • 1.Sc6?
      • threat
        • 2.Qxe7#
      • 1...Kf7
        • 2.Qf2#
        • 2.Qxe7#
      • 1...e5
        • 2.Qe7#
        • 2.Qg7#
      • 1...e6
        • 2.Qe7#
        • 2.Qg7#
      • 1...Kg5!
    • 1.Se6?
      • 1...Kf7
        • 2.Rf8#
        • 2.Qf2#
      • 1...Ke5!
    • 1.Rf8+?
      • 1...Kg5
        • 2.Sf3#
        • 2.Qxe7#
      • 1...Ke5!
    • 1.Qc7?
      • threat
        • 2.Qf4#
      • 1...Kf7
        • 2.Qf4#
      • 1...e6
        • 2.Se4#
        • 2.Qg7#
      • 1...e5
        • 2.Se4#
        • 2.Qg7#
      • 1...Kg5!
  • Keys
    • 1.Sde2!
      • 1...Ke5
        • 2.Qxe7#
      • 1...Kg5
        • 2.Qxe7#
      • 1...Kf7
        • 2.Qf2#
      • 1...e5
        • 2.Qg7#
      • 1...e6
        • 2.Qg7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • P(b);OGATE::QAB1(F)
  • Tries
    • Try
      • S(D);
      • Vars
        • K(a);S_FLIGHT::QAB1(F)
        • K(a);P-FLIGHT,P_SPINP(b)::QAR(F)
        • P(b);OGATE,SBLOCK::QAB1(F)
        • P(b);OGATE::QAB1(F)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(D);
      • Threat
        • QAB1(F),XP(b)
      • Vars
        • K(a);S_FLIGHT::QAB1(F)
        • K(a);P-FLIGHT,P_SPINP(b)::QAR1(F),XP(b)
        • P(b);OGATE::QAB1(F)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(D);
      • Threat
        • QAB1(F),XP(b)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(D);
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(H);CHECK
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(F);
      • Threat
        • QAR2(F)
      • Vars
        • K(a);P-FLIGHT,P_SPINP(b)::QAR(F)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • S(D);
    • Vars
      • K(a);S_FLIGHT::QAR2(F),XP(b)
      • K(a);S_FLIGHT::QAB(F),XP(b)
      • K(a);P-FLIGHT,P_SPINP(b)::QAR(F)
      • P(b);OGATE,SBLOCK::QAB1(F)
      • P(b);OGATE::QAB1(F)
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