MESON Chess Problem Database

Problem Display
PID: 17332 (q1bbR3/8/r7/3n1p1Q/1BRP1k2/r5NK/2N2P2/8 w - - 0 1)

Eaton, Vincent Lanius

2nd Prize, USCF 001. Ty., 1946

q1bbR3/8/r7/3n1p1Q/1BRP1k2/r5NK/2N2P2/8

#2

9 + 8

5064 100 Years of the American Two-move Chess Problem 1962
3105 FIDE Album (1945-1955) 1964
15513 Selected Chess Problems of Colin Sydenham 2015

SOLUTION

  • SOUND
  • Sets
    • 1...Ra1
      • 2.Se2#
    • 1...Ra2
      • 2.Se2#
    • 1...Rxg3+
      • 2.fxg3#
    • 1...R3a4
      • 2.Se2#
    • 1...R3a5
      • 2.Se2#
    • 1...R6a4
      • 2.Bd6#
    • 1...R6a5
      • 2.Bd6#
    • 1...Rd6
      • 2.Bxd6#
    • 1...Re6
      • 2.Qxf5#
    • 1...Ra7
      • 2.Bd6#
    • 1...Bb7
      • 2.Qxf5#
    • 1...Bb6
      • 2.Bd6#
    • 1...Se3
      • 2.Se2#
    • 1...Sxb4
      • 2.d5#
    • 1...Sb6
      • 2.Bd6#
    • 1...Sc7
      • 2.d5#
  • Tries
    • 1.Bd2+?
      • 1...Se3
        • 2.Se2#
        • 2.d5#
      • 1...Re3!
  • Keys
    • 1.Se1!
      • threat
        • 2.Sg2#
      • 1...Rxg3+
        • 2.fxg3#
      • 1...Sxb4
        • 2.d5#
      • 1...Sc3
        • 2.Sd3#
      • 1...Se3
        • 2.Se2#
      • 1...Sb6
        • 2.Bd6#
      • 1...Sf6
        • 2.Qh6#
      • 1...Sc7
        • 2.d5#
      • 1...Se7
        • 2.Qh4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 11
  • Sets
    • R(a);N_PINS(C)::S(C)
    • R(a);CHECK,OGATE,XS(C)::P(B),XR(a)
    • R(e);N_GUARD::B(E)
    • R(e);N_GUARD::B(E),XR(e)
    • R(e);S_CUTB(g)::QAR1(H),XP(d)
    • B(g);N_GUARD::QAR1(H),XP(d)
    • B(h);S_CUTR(e)::B(E)
    • S(c);N_PINS(C)::S(C)
    • S(c);OGATE,XB(E)::R(F)+P(G)
    • S(c);S_CUTR(e)::B(E)
    • S(c);OGATE::R(F)+P(G)
  • Tries
    • Try
      • B(E);CHECK
      • Refutation
        • R(a);P_SPINR(a)
  • Actual
    • S(A);
    • Threat
      • S(A)
    • Vars
      • R(a);CHECK,OGATE,XS(C)::P(B),XR(a)
      • S(c);OGATE,XB(E)::R(F)+P(G)
      • S(c);N_PINS(C),S_CUTR(a)::S(A)
      • S(c);N_PINS(C)::S(C)
      • S(c);S_CUTR(e)::B(E)
      • S(c);S_CUTB(h),S_CUTR(e)::QAB(H)
      • S(c);OGATE::R(F)+P(G)
      • S(c);S_CUTB(h)::QAR2(H)
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