MESON Chess Problem Database

Problem Display
PID: 44557 (2N3R1/1B2p1p1/4k1p1/6K1/8/8/8/6Q1 w - - 0 1)

Carpenter, George Edward

Dubuque Chess Journal, 1870

2N3R1/1B2p1p1/4k1p1/6K1/8/8/8/6Q1

#2

5 + 4

SOLUTION

  • SOUND
  • Sets
    • 1...Ke5
      • 2.Qe3#
  • Tries
    • 1.Kxg6?
      • 1...Ke5
        • 2.Qe3#
      • 1...Kd7!
    • 1.Bc6?
      • 1...Ke5
        • 2.Qe3#
      • 1...Kf7!
    • 1.Rxg7?
      • threat
        • 2.Rxe7#
      • 1...Ke5
        • 2.Rxe7#
        • 2.Qe3#
      • 1...Kd7!
    • 1.Rd8?
      • 1...Ke5
        • 2.Qe3#
        • 2.Qe1#
      • 1...Kf7!
    • 1.Rf8?
      • 1...Ke5
        • 2.Qe3#
      • 1...Kd7!
    • 1.Qf2?
      • 1...Ke5
        • 2.Qe3#
      • 1...Kd7!
    • 1.Qe3+?
      • 1...Kd7
        • 2.Qxe7#
      • 1...Kf7!
    • 1.Qc5?
      • threat
        • 2.Qxe7#
        • 2.Qd5#
      • 1...Kd7
        • 2.Qxe7#
        • 2.Qc6#
      • 1...Kf7!
    • 1.Qb6+?
      • 1...Ke5
        • 2.Qe3#
      • 1...Kd7
        • 2.Rd8#
        • 2.Qc6#
      • 1...Kf7!
    • 1.Qc1?
      • 1...Ke5
        • 2.Qe3#
      • 1...Kd7
        • 2.Qc6#
      • 1...Kf7!
    • 1.Qd1?
      • threat
        • 2.Qd5#
      • 1...Ke5
        • 2.Qd5#
      • 1...Kf7!
    • 1.Qe1+?
      • 1...Kd7
        • 2.Qxe7#
      • 1...Kf7!
    • 1.Qh1?
      • threat
        • 2.Qd5#
      • 1...Ke5
        • 2.Qe4#
        • 2.Qd5#
      • 1...Kd7
        • 2.Qc6#
      • 1...Kf7!
    • 1.Qg2?
      • threat
        • 2.Qd5#
      • 1...Ke5
        • 2.Qe4#
        • 2.Qd5#
      • 1...Kd7
        • 2.Qc6#
      • 1...Kf7!
    • 1.Qg4+?
      • 1...Ke5
        • 2.Qe4#
      • 1...Kf7!
  • Keys
    • 1.Qa7!
      • 1...Ke5
        • 2.Qe3#
      • 1...Kd7
        • 2.Bd5#
      • 1...Kf7
        • 2.Bd5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(a);P-FLIGHT::QAR2(A)
  • Tries
    • Try
      • K(B);P-FLIGHT,XP(b)
      • Vars
        • K(a);P-FLIGHT::QAR2(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(C);
      • Vars
        • K(a);P-FLIGHT::QAR2(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(E);XP(d)
      • Threat
        • R1(E),XP(c)
      • Refutation
        • K(a);P_SPINP(c),S_FLIGHT
    • Try
      • R(E);
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(E);
      • Vars
        • K(a);P-FLIGHT::QAR2(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(a);P-FLIGHT::QAR2(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT::QAR1(A),XP(c)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);P-FLIGHT::QAR2(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(a);P-FLIGHT::QAR2(A)
        • K(a);S_FLIGHT::QAB1(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);
      • Threat
        • QAB1(A)
      • Vars
        • K(a);P-FLIGHT::QAR1(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT::QAR1(A),XP(c)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);
      • Threat
        • QAB1(A)
      • Vars
        • K(a);S_FLIGHT::QAB1(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);
      • Threat
        • QAB1(A)
      • Vars
        • K(a);S_FLIGHT::QAB1(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);P-FLIGHT::QAR1(A)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • Q(A);
    • Vars
      • K(a);P-FLIGHT::QAR2(A)
      • K(a);S_FLIGHT::QAR(A)+B(C)
      • K(a);S_FLIGHT::B(C)
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