MESON Chess Problem Database

Problem Display
PID: 41621 (4Q3/4B1p1/Pp4p1/1NNk2K1/6nR/4n2B/2P3P1/4R3 w - - 0 1)

Rice, John Michael

3rd Prize, BCPS Ring Ty., 1959

(First published on Sat Jul 25 1959)

4Q3/4B1p1/Pp4p1/1NNk2K1/6nR/4n2B/2P3P1/4R3

#2

11 + 6

1189 The Tablet 1959
3147 Chess Problems: Introduction to an Art 1963
3749 FIDE Album (1959-1961) 1966
5174 Chess Problem Spectrum 2003

SOLUTION

  • SOUND
  • Sets
    • 1...Sc4
      • 2.Qa8#
    • 1...Se5
      • 2.Sc3#
      • 2.Sc7#
      • 2.Be6#
      • 2.Rd4#
  • Tries
    • 1.Rd1+?
      • 1...Kc4
        • 2.Rd4#
      • 1...Ke5
        • 2.Bd6#
        • 2.Bf6#
        • 2.Bd8#
        • 2.Bf8#
        • 2.Qb8#
      • 1...Sxd1!
    • 1.Qc6+?
      • 1...Kc4
        • 2.Sb3#
        • 2.Sd3#
        • 2.Sa4#
        • 2.Se4#
        • 2.Se6#
        • 2.Sb7#
        • 2.Sd7#
      • 1...Ke5
        • 2.Sd3#
        • 2.Sd7#
        • 2.Bd6#
        • 2.Qe4#
        • 2.Qd6#
        • 2.Qe6#
      • 1...Kxc6!
    • 1.Qd7+?
      • 1...Ke5
        • 2.Qe6#
        • 2.Qd4#
        • 2.Qd6#
      • 1...Kc4!
    • 1.Qf7+?
      • 1...Ke5
        • 2.Bd6#
        • 2.Qe6#
      • 1...Kc6!
    • 1.Qa8+?
      • 1...Ke5
        • 2.Bd6#
        • 2.Qe4#
      • 1...Kc4!
    • 1.Qd8+?
      • 1...Ke5
        • 2.Qd4#
        • 2.Qd6#
      • 1...Kc6
        • 2.Sd4#
        • 2.Sa7#
        • 2.Qd7#
      • 1...Kc4!
    • 1.Qg8+?
      • 1...Ke5
        • 2.Bd6#
        • 2.Qe6#
      • 1...Kc6!
    • 1.c4+?
      • 1...Ke5
        • 2.Bd6#
        • 2.Bf6#
        • 2.Bd8#
        • 2.Bf8#
        • 2.Qb8#
      • 1...Sxc4
        • 2.Qa8#
      • 1...Kxc4!
  • Keys
    • 1.Sd7!
      • 1...Kc4
        • 2.Sxb6#
      • 1...Ke4
        • 2.Qa8#
      • 1...Kc6
        • 2.Sf6#
      • 1...Ke6
        • 2.Sc7#
      • 1...Sxc2
        • 2.Sxb6#
      • 1...Sxg2
        • 2.Sxb6#
      • 1...Sd1
        • 2.Sxb6#
      • 1...Sf1
        • 2.Sxb6#
      • 1...Sc4
        • 2.Qa8#
      • 1...Sf5
        • 2.Sxb6#
      • 1...Sf2
        • 2.Qa8#
      • 1...Sh2
        • 2.Qa8#
      • 1...Se5
        • 2.Sxb6#
      • 1...Sf6
        • 2.Qa8#
      • 1...Sh6
        • 2.Qa8#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 14
    • REMOVED MATES = 0
  • Sets
    • S(a);SBLOCK::QAB(K)
  • Tries
    • Try
      • R(A);CHECK
      • Vars
        • K(c);P_SPINS(b),S_FLIGHT::R1(A)
      • Refutation
        • S(a);XR(A)
    • Try
      • Q(K);CHECK
      • Refutation
        • K(c);S_FLIGHT,XQ(K)
    • Try
      • Q(K);CHECK
      • Refutation
        • K(c);P_SPINS(b),S_FLIGHT
    • Try
      • Q(K);CHECK
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(K);CHECK
      • Refutation
        • K(c);P_SPINS(b),S_FLIGHT
    • Try
      • Q(K);CHECK
      • Refutation
        • K(c);P_SPINS(b),S_FLIGHT
    • Try
      • Q(K);CHECK
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • P(B);CHECK
      • Vars
        • S(a);SBLOCK,XP(B)::QAB(K)
      • Refutation
        • K(c);P_SPINS(b),S_FLIGHT,XP(B)
  • Actual
    • S(G);
    • Vars
      • K(c);P_SPINS(b),S_FLIGHT::S(G),XP(d)
      • K(c);P_SPINS(a),S_FLIGHT::QAB(K)
      • K(c);S_FLIGHT::QAB(K)+S(G)
      • K(c);P_SPINS(a),S_FLIGHT::S(F)
      • S(a);XP(B)::S(G),XP(d)
      • S(a);XP(C)::S(G),XP(d)
      • S(a);::S(G),XP(d)
      • S(a);SBLOCK::QAB(K)
      • S(b);::QAB(K)
      • S(b);SBLOCK::S(G),XP(d)
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