MESON Chess Problem Database

Problem Display
PID: 151819 (8/3P2N1/2P5/Qp1B4/1N1k1p2/4rR2/4R2K/6B1 w - - 0 1)

Keeble, John Frederick

Good Companions (December), 1914

8/3P2N1/2P5/Qp1B4/1N1k1p2/4rR2/4R2K/6B1

#2

10 + 4

SOLUTION

  • SOUND
  • Tries
    • 1.Sf5+?
      • 1...Kc3
        • 2.Rc2#
        • 2.Qa3#
      • 1...Kc5
        • 2.Rc2#
      • 1...Ke5!
    • 1.Se6+?
      • 1...Kc3
        • 2.Rc2#
        • 2.Qa3#
      • 1...Ke5!
    • 1.Rexe3?
      • threat
        • 2.Se6#
        • 2.Re1#
        • 2.Re2#
        • 2.Re4#
        • 2.Re6#
        • 2.Re7#
        • 2.Re8#
        • 2.Qb6#
        • 2.Qa7#
      • 1...Kc5
        • 2.Re6#
      • 1...fxe3!
    • 1.Rfxe3?
      • threat
        • 2.Se6#
        • 2.Ra3#
        • 2.Rb3#
        • 2.Rd3#
        • 2.Rf3#
        • 2.Rg3#
        • 2.Rh3#
        • 2.Qb6#
        • 2.Qa7#
      • 1...Kc5
        • 2.Re6#
      • 1...f3
        • 2.Se6#
        • 2.Rd3#
        • 2.Rxf3#
        • 2.Qb6#
        • 2.Qa7#
      • 1...fxe3!
    • 1.Rxf4+?
      • 1...Kc3
        • 2.Rc2#
        • 2.Qa1#
        • 2.Qa3#
      • 1...Ke5
        • 2.Qc7#
      • 1...Kc5!
    • 1.Qb6+?
      • 1...Kc3
        • 2.Qc5#
      • 1...Ke5!
    • 1.Qxb5?
      • 1...Kc3
        • 2.Qc4#
        • 2.Qc5#
      • 1...Ke5!
    • 1.Qa7+?
      • 1...Kc3
        • 2.Qc5#
      • 1...Ke5!
    • 1.d8R?
      • 1...Kc5
        • 2.Se6#
      • 1...Ke5
        • 2.Qa1#
      • 1...Kc3!
  • Keys
    • 1.d8Q!
      • 1...Kc3
        • 2.Qf6#
      • 1...Kc5
        • 2.Se6#
      • 1...Ke5
        • 2.Qa1#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(J);CHECK
      • Vars
        • K(b);P_SPINP(d),S_FLIGHT::R(B)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • S(J);CHECK
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • R(B);XR(a)
      • Threat
        • DUALS(9)
      • Vars
        • K(b);P_SPINP(d),S_FLIGHT::B(A)+R(B)
      • Refutation
        • P(c);P_SPINP(c),XR(B)
    • Try
      • R(D);XR(a)
      • Threat
        • DUALS(9)
      • Vars
        • K(b);P_SPINP(d),S_FLIGHT::B(A)+R(D)
      • Refutation
        • P(c);P_SPINP(c),XR(D)
    • Try
      • R(D);CHECK,XP(c)
      • Vars
        • K(b);S_FLIGHT::QAB(F)
      • Refutation
        • K(b);P_SPINP(d),S_FLIGHT
    • Try
      • Q(F);CHECK
      • Vars
        • K(b);S_FLIGHT::QAR2(F)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(F);XP(d)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(F);CHECK
      • Vars
        • K(b);S_FLIGHT::QAR2(F)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • P(I);
      • Vars
        • K(b);P_SPINP(d),S_FLIGHT::S(J)
        • K(b);S_FLIGHT::QAB(F)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • P(I);
    • Vars
      • K(b);S_FLIGHT::QAB(I)
      • K(b);P_SPINP(d),S_FLIGHT::S(J)
      • K(b);S_FLIGHT::QAB(F)
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