MESON Chess Problem Database

Problem Display
PID: 38479 (3rb3/5p2/B1Q2R2/2KPp1p1/1PN1k2b/2p4r/2P1p1PB/3N4 w - - 0 1)

Dawson, Thomas Rayner

Falkirk Herald, 1937

(First published on Wed Feb 10 1937)

3rb3/5p2/B1Q2R2/2KPp1p1/1PN1k2b/2p4r/2P1p1PB/3N4

#2

11 + 10

3979 Systematic Terminology 1984
15256 TRD Scrapbook 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Rxh2
      • 2.Sxc3#
    • 1...Rf3
      • 2.gxf3#
    • 1...Rg3
      • 2.Sf2#
    • 1...Rxd5+
      • 2.Qxd5#
    • 1...Rd6
      • 2.Sxd6#
    • 1...Rd7
      • 2.d6#
    • 1...Ra8
      • 2.Sd6#
    • 1...Rb8
      • 2.Sd6#
    • 1...Rc8
      • 2.Sd6#
    • 1...Bf2+
      • 2.Sxf2#
    • 1...Bg3
      • 2.Sxc3#
    • 1...Bd7
      • 2.Sd6#
  • Tries
    • 1.Qd6?
      • threat
        • 2.Qxe5#
      • 1...Bf2+
        • 2.Sxf2#
      • 1...Rxd6
        • 2.Sxd6#
      • 1...Bg3
        • 2.Sxc3#
      • 1...Rc8+!
    • 1.Qc7?
      • threat
        • 2.Qxe5#
      • 1...Bf2+
        • 2.Sxf2#
      • 1...Rd6
        • 2.Sxd6#
      • 1...Rc8
        • 2.Sd6#
      • 1...Bg3
        • 2.Sxc3#
      • 1...Rxd5+!
  • Keys
    • 1.Bc8!
      • threat
        • 2.Bf5#
      • 1...Rxd5+
        • 2.Qxd5#
      • 1...Bf2+
        • 2.Sxf2#
      • 1...Rxh2
        • 2.Sxc3#
      • 1...Rxc8
        • 2.Sd6#
      • 1...Rf3
        • 2.gxf3#
      • 1...Rg3
        • 2.Sf2#
      • 1...Rd7
        • 2.d6#
      • 1...Bg3
        • 2.Sxc3#
      • 1...Bd7
        • 2.Sd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 3
  • Sets
    • R(c);N_GUARD,XB(D)::S(A),XP(b)
    • R(c);OGATE::P(C),XR(c)
    • R(c);S_CUTB(e)::S(A)
    • R(i);CHECK,OGATE,P_SPINR(i),XP(H)::QAB1(J),XR(i)
    • R(i);N_GUARD::S(F),XR(i)
    • R(i);S_CUTB(j)::QAB(J)+P(H)
    • R(i);N_GUARD::S(F)
    • R(i);N_GUARD,P_PINQ(J)::S(F)
    • B(e);CHECK,N_GUARD::S(A),XB(e)
    • B(e);S_CUTR(c)::S(A),XP(b)
    • B(j);S_CUTR(i)::S(F)
  • Tries
    • Try
      • Q(J);
      • Threat
        • QAR1(J),XP(f)
      • Vars
        • B(e);CHECK,N_GUARD::S(A),XB(e)
        • R(i);XQ(J)::S(F),XR(i)
        • B(e);S_CUTR(c)::S(A),XP(b)
      • Refutation
        • R(i);CHECK
    • Try
      • Q(J);
      • Threat
        • QAR1(J),XP(f)
      • Vars
        • B(e);CHECK,N_GUARD::S(A),XB(e)
        • R(i);N_GUARD::S(F),XR(i)
        • R(i);N_GUARD,P_PINQ(J)::S(F)
        • B(e);S_CUTR(c)::S(A),XP(b)
      • Refutation
        • R(i);CHECK,XP(H)
  • Actual
    • B(I);
    • Threat
      • B(I)
    • Vars
      • R(i);CHECK,OGATE,P_SPINR(i),XP(H)::QAB1(J),XR(i)
      • B(e);CHECK,N_GUARD::S(A),XB(e)
      • R(c);N_GUARD,XB(D)::S(A),XP(b)
      • R(i);N_GUARD,P_PINQ(J),XB(I)::S(F)
      • R(c);OGATE::P(C),XR(c)
      • R(c);S_CUTB(e)::S(A)
      • R(i);S_CUTB(j)::QAB(J)+P(H)
      • B(e);S_CUTR(c)::S(A),XP(b)
      • B(j);S_CUTR(i)::S(F)
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