MESON Chess Problem Database

Problem Display
PID: 16334 (3rN1b1/B7/2p5/2Nk4/p3R1B1/r2p3K/3b4/1Q6 w - - 0 1)

Gooderson, Arthur R

Chess, 1940

3rN1b1/B7/2p5/2Nk4/p3R1B1/r2p3K/3b4/1Q6

#2

7 + 8

3207 A R Gooderson An English Progressive 1996

SOLUTION

  • SOUND
  • Sets
    • 1...Ra1
      • 2.Qxd3#
    • 1...Ra2
      • 2.Qxa2#
      • 2.Qxd3#
    • 1...Rd6
      • 2.Sc7#
    • 1...Be6
      • 2.Bxe6#
    • 1...Bh7
      • 2.Be6#
  • Tries
    • 1.Qb4?
      • threat
        • 2.Qc4#
        • 2.Qd4#
      • 1...Rxe8
        • 2.Qd4#
      • 1...Rc3
        • 2.Qd4#
      • 1...Bc3
        • 2.Qc4#
      • 1...Be3
        • 2.Qc4#
      • 1...Bxb4!
  • Keys
    • 1.Sxd3!
      • threat
        • 2.Rd4#
      • 1...Rxd3+
        • 2.Qxd3#
      • 1...Kxe4
        • 2.Sf6#
      • 1...c5
        • 2.Qb7#
      • 1...Bc3
        • 2.Sf4#
      • 1...Be3
        • 2.Sb4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 4
  • Sets
    • R(b);N_GUARD::QAR2(A),XP(c)
    • R(g);SBLOCK::S(G)
    • B(h);N_GUARD,P_PINB(D)::B(D),XB(h)
    • B(h);N_GUARD::B(D)
  • Tries
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Vars
        • R(g);XS(G)::QAR1(A)
        • R(b);::QAR1(A)
        • B(a);::QAB1(A)
      • Refutation
        • B(a);XQ(A)
  • Actual
    • S(E);P_SPINS(E),XP(c)
    • Threat
      • R1(C)
    • Vars
      • R(b);CHECK,OGATE,XS(E)::QAR2(A),XR(b)
      • K(e);S_FLIGHT,XR(C)::S(G)
      • P(f);OGATEB::QAB(A)
      • B(a);N_PINS(E)::S(E)
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