MESON Chess Problem Database

Problem Display
PID: 58428 (8/8/8/1p1p2B1/1K1pP3/3kpN2/6P1/4R2Q w - - 0 1)

Phelps, Francis Bradley

Source?, 0000

8/8/8/1p1p2B1/1K1pP3/3kpN2/6P1/4R2Q

#2

7 + 5

15 British Chess Magazine 1886

SOLUTION

  • SOUND
  • Sets
    • 1...Kxe4
      • 2.Qh7#
  • Tries
    • 1.Rb1?
      • 1...Kc2
        • 2.Qd1#
      • 1...Ke2
        • 2.Qf1#
      • 1...Kxe4
        • 2.Qh7#
      • 1...dxe4
        • 2.Qd1#
      • 1...e2!
    • 1.Rc1?
      • 1...Ke2
        • 2.Qf1#
      • 1...Kxe4
        • 2.Qh7#
      • 1...dxe4
        • 2.Qd1#
      • 1...e2!
    • 1.Rd1+?
      • 1...Ke2
        • 2.Qe1#
        • 2.Qf1#
      • 1...Kxe4
        • 2.Qh7#
      • 1...Kc2!
    • 1.Re2?
      • 1...Kxe4
        • 2.Qh7#
      • 1...dxe4
        • 2.Qd1#
      • 1...Kxe2!
    • 1.Qf1+?
      • 1...Kc2
        • 2.Qe2#
      • 1...e2
        • 2.Qxe2#
      • 1...Kxe4!
    • 1.e5?
      • threat
        • 2.Qh7#
      • 1...Ke4
        • 2.Qh7#
      • 1...Kc2!
  • Keys
    • 1.Ra1!
      • 1...Kc2
        • 2.Qb1#
      • 1...Ke2
        • 2.Qf1#
      • 1...Kxe4
        • 2.Qh7#
      • 1...dxe4
        • 2.Qd1#
      • 1...e2
        • 2.Qb1#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • K(a);OGATEB,P_SPINP(b),S_FLIGHT,XP(F)::QAB(B)
  • Tries
    • Try
      • R(A);
      • Vars
        • K(a);S_FLIGHT::QAB1(B)
        • K(a);OGATEB,S_FLIGHT,XP(F)::QAB(B)
        • P(e);SBLOCK,XP(F)::QAR2(B)
      • Refutation
        • P(b);
    • Try
      • R(A);
      • Vars
        • K(a);S_FLIGHT::QAB1(B)
        • K(a);OGATEB,S_FLIGHT,XP(F)::QAB(B)
        • P(e);SBLOCK,XP(F)::QAR2(B)
      • Refutation
        • P(b);
    • Try
      • R(A);CHECK
      • Vars
        • K(a);S_FLIGHT,XP(F)::QAB(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(A);
      • Vars
        • K(a);OGATEB,P_SPINP(b),S_FLIGHT,XP(F)::QAB(B)
        • P(e);SBLOCK,XP(F)::QAR2(B)
      • Refutation
        • K(a);S_FLIGHT,XR(A)
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);S_FLIGHT::QAR2(B)
        • P(b);P_SPINP(b)::QAB1(B),XP(b)
      • Refutation
        • K(a);P_SPINP(b),S_FLIGHT,XP(F)
    • Try
      • P(F);
      • Threat
        • QAB(B)
      • Vars
        • K(a);P_SPINP(b),S_FLIGHT::QAB(B)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • R(A);
    • Vars
      • K(a);S_FLIGHT::QAB1(B)
      • K(a);OGATEB,S_FLIGHT,XP(F)::QAB(B)
      • P(e);SBLOCK,XP(F)::QAR2(B)
      • P(b);SBLOCK::QAB(B)
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