MESON Chess Problem Database

Problem Display
PID: 153354 (3R2b1/q2pQ1K1/1rr3p1/2p2pB1/3k1N2/PPp2P2/2Rp4/2nB4 w - - 0 1)

Dawson, Thomas Rayner

British Chess Magazine, 1946

3R2b1/q2pQ1K1/1rr3p1/2p2pB1/3k1N2/PPp2P2/2Rp4/2nB4

#2

10 + 12

15256 TRD Scrapbook 2014

SOLUTION

  • SOUND
  • Sets
    • 1...d6
      • 2.Bf6#
  • Tries
    • 1.Rxd2+?
      • 1...Sd3
        • 2.Rxd3#
      • 1...cxd2!
    • 1.Rxd7+?
      • 1...Rd6
        • 2.Bf6#
      • 1...Bd5
        • 2.Rxd5#
      • 1...Qxd7!
  • Keys
    • 1.Rxc3!
      • threat
        • 2.Qe3#
      • 1...Kxc3
        • 2.Qe5#
      • 1...Re6
        • 2.Qxc5#
      • 1...Be6
        • 2.Bf6#
        • 2.Qf6#
      • 1...Sd3
        • 2.Rxd3#
      • 1...d5
        • 2.Rc4#
      • 1...d6
        • 2.Bf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • P(k);P_PINQ(H),S_CUTR(h)::B(G)
  • Tries
    • Try
      • R(B);CHECK,XP(b)
      • Vars
        • S(a);N_GUARD,P_SPINS(a)::R1(B),XS(a)
      • Refutation
        • P(c);XR(B)
    • Try
      • R(J);CHECK,XP(k)
      • Vars
        • R(h);P_SPINR(h)::B(G)
        • B(l);N_GUARD,P_SPINB(l)::R1(J),XB(l)
      • Refutation
        • Q(j);P_PINQ(H),XR(J)
  • Actual
    • R(B);XP(c)
    • Threat
      • QAB1(H)
    • Vars
      • K(d);N_SPINP(k),S_FLIGHT,XR(B)::QAB(H)
      • R(h);N_GUARD::QAB1(H),XP(e)
      • S(a);N_GUARD::R1(B),XS(a)
      • P(k);P_PINQ(H),S_CUTB(l)::R1(B)
      • P(k);P_PINQ(H),S_CUTR(h)::B(G)
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