MESON Chess Problem Database

Problem Display
PID: 24606 (1r2R1Q1/8/b7/1B1NN3/r3k1K1/2P5/8/8 w - - 0 1)

Howard, Kenneth Samuel

Grand Rapids Herald, 1933

1r2R1Q1/8/b7/1B1NN3/r3k1K1/2P5/8/8

#2

7 + 4

5088 How to Solve Chess Problems 1945

SOLUTION

  • SOUND
  • Sets
    • 1...Rb6
      • 2.Sc6#
    • 1...Rb7
      • 2.Sd7#
    • 1...Bb7
      • 2.Bd3#
    • 1...Bc8+
      • 2.Sd7#
  • Tries
    • 1.Sc4+?
      • 1...Kd3
        • 2.Qh7#
        • 2.Qg6#
      • 1...Rxe8!
    • 1.Qf7?
      • threat
        • 2.Qf3#
      • 1...Bc8+
        • 2.Sd7#
      • 1...Rxe8!
  • Keys
    • 1.Qg5!
      • threat
        • 2.Sf6#
      • 1...Kxd5+
        • 2.Sc4#
      • 1...Bc8+
        • 2.Sd7#
      • 1...Rb6
        • 2.Sc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 2
  • Sets
    • R(d);N_GUARD::R(F)+S(E)
    • B(c);N_GUARD::B(C)
    • B(c);CHECK,S_CUTR(d)::R(F)+S(E)
  • Tries
    • Try
      • S(E);CHECK
      • Refutation
        • R(d);XR(F)
    • Try
      • Q(G);
      • Threat
        • QAB1(G)
      • Vars
        • B(c);CHECK,S_CUTR(d)::R(F)+S(E)
      • Refutation
        • R(d);XR(F)
  • Actual
    • Q(G);
    • Threat
      • S(D)
    • Vars
      • K(b);CHECK,S_FLIGHT,XS(D)::QAR(G)+S(E)
      • B(c);CHECK,S_CUTR(d)::R(F)+S(E)
      • R(d);N_GUARD::R(F)+S(E)
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