MESON Chess Problem Database

Problem Display
PID: 21016 (K7/NNk5/1ppR3R/7r/8/Q7/7b/7b w - - 0 1)

Rice, William Bayard

1st Prize, Good Companions (May Meredith Ty.), 1915

K7/NNk5/1ppR3R/7r/8/Q7/7b/7b

#2

6 + 6

3132 The Good Companion Two-Mover 1922
3360 Simple Two-move Themes 1924
5064 100 Years of the American Two-move Chess Problem 1962
3310 2345 Chess Problems 1997

SOLUTION

  • SOUND
  • Sets
    • 1...Ra5
      • 2.Rh7#
    • 1...Rb5
      • 2.Rh7#
    • 1...Rc5
      • 2.Rh7#
    • 1...Rd5
      • 2.Rh7#
    • 1...Bxd6
      • 2.Qxd6#
    • 1...b5
      • 2.Qa5#
  • Tries
    • 1.Rd5?
      • threat
        • 2.Rxc6#
        • 2.Qe7#
      • 1...Rxh6
        • 2.Qe7#
      • 1...Bxd5
        • 2.Qe7#
      • 1...cxd5
        • 2.Qe7#
      • 1...Bd6
        • 2.Qxd6#
      • 1...b5
        • 2.Rxc6#
        • 2.Qa5#
      • 1...c5
        • 2.Rc6#
      • 1...Re5
        • 2.Rxc6#
        • 2.Qd6#
      • 1...Rxd5!
    • 1.Rh8?
      • threat
        • 2.Rc8#
      • 1...Bxd6
        • 2.Qxd6#
      • 1...b5
        • 2.Qa5#
      • 1...Rxh8+!
  • Keys
    • 1.Rd8!
      • threat
        • 2.Qe7#
      • 1...b5
        • 2.Qa5#
      • 1...c5
        • 2.Sb5#
      • 1...Rc5
        • 2.Rh7#
      • 1...Rd5
        • 2.Rxc6#
      • 1...Re5
        • 2.Qd6#
      • 1...Bd6
        • 2.Qxd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • R(c);N_GUARD,P_PINS(D)::R(C)
    • R(c);N_GUARD::R(C)
    • B(b);OGATE,XR(B)::QAB1(A),XB(b)
    • P(d);OGATEB::QAB(A)
  • Tries
    • Try
      • R(B);
      • Threat
        • DUALS(2)
      • Vars
        • R(c);XR(C)::QAR2(A)
        • B(a);XR(B)::QAR2(A)
        • P(e);XR(B)::QAR2(A)
        • B(b);N_GUARD::QAB1(A),XB(b)
        • P(e);::R1(C)
      • Refutation
        • R(c);XR(B)
    • Try
      • R(C);
      • Threat
        • R1(C)
      • Vars
        • B(b);OGATE,XR(B)::QAB1(A),XB(b)
        • P(d);OGATEB::QAB(A)
      • Refutation
        • R(c);CHECK,XR(C)
  • Actual
    • R(B);
    • Threat
      • QAR2(A)
    • Vars
      • P(d);OGATEB::QAB(A)
      • P(e);N_GUARD,P_PINS(E),S_CUTR(c)::S(D)
      • R(c);N_GUARD::R(C)
      • R(c);S_CUTB(a)::R1(C),XP(e)
      • R(c);S_CUTB(b)::QAB1(A)
      • B(b);N_GUARD::QAB1(A),XB(b)
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