MESON Chess Problem Database

Problem Display
PID: 132893 (8/8/1QK2p2/R4P1B/2p1kNb1/6P1/5R2/6r1 w - - 0 1)

Driver, John Edward

The Field, 1959

(First published on Thu May 14 1959)

8/8/1QK2p2/R4P1B/2p1kNb1/6P1/5R2/6r1

#2

8 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Be2
      • 2.Rxe2#
    • 1...Bf3
      • 2.Bxf3#
    • 1...Bh3
      • 2.Bf3#
      • 2.Re2#
    • 1...Bxf5
      • 2.Bf3#
      • 2.Re2#
  • Tries
    • 1.Se6?
      • threat
        • 2.Qd4#
      • 1...Kd3
        • 2.Qd4#
      • 1...Rd1!
    • 1.Bxg4?
      • threat
        • 2.Bf3#
        • 2.Re2#
      • 1...Re1
        • 2.Bf3#
      • 1...Rg2
        • 2.Bf3#
      • 1...Rxg3!
    • 1.Re2+?
      • 1...Kf3
        • 2.Qf2#
        • 2.Qe3#
      • 1...Bxe2!
  • Keys
    • 1.Kc5!
      • threat
        • 2.Qe6#
      • 1...Ke3
        • 2.Kd5#
      • 1...Ke5
        • 2.Qe6#
      • 1...Kxf5
        • 2.Kd4#
      • 1...Bxf5
        • 2.Re2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 2
  • Sets
    • B(d);N_GUARD::R(A),XB(d)
    • B(d);OGATE::B(F),XB(d)
  • Tries
    • Try
      • S(C);
      • Threat
        • QAR1(G)
      • Vars
        • K(c);S_FLIGHT::QAR1(G)
      • Refutation
        • R(a);
    • Try
      • B(F);XB(d)
      • Threat
        • DUALS(2)
      • Vars
        • R(a);::B(F)
      • Refutation
        • R(a);XP(B)
    • Try
      • R(A);CHECK
      • Refutation
        • B(d);XR(A)
  • Actual
    • K(H);P-FLIGHT
    • Threat
      • QAR2(G)
    • Vars
      • K(c);P-FLIGHT::QAB(G)+K(H)
      • K(c);P-FLIGHT::QAR1(G)
      • K(c);S_FLIGHT,XP(E)::R(D)+K(H)
      • B(d);N_GUARD,SBLOCK,XP(E)::R(A)
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