MESON Chess Problem Database

Problem Display
PID: 147716 (8/5n2/1KP1pR1n/1Q2p2N/3Pk1P1/2r3P1/2P3P1/BB3N1R w - - 0 1)

Dawson, Thomas Rayner

Yorkshire Weekly Post, 1910

(First published on Fri Oct 21 1910)

8/5n2/1KP1pR1n/1Q2p2N/3Pk1P1/2r3P1/2P3P1/BB3N1R

#2

14 + 6

15256 TRD Scrapbook 2013

SOLUTION

  • SOUND
  • Sets
    • 1...Kxd4
      • 2.Qd3#
    • 1...Rxc2
      • 2.Bxc2#
    • 1...Ra3
      • 2.c3#
    • 1...Rb3
      • 2.cxb3#
    • 1...Rd3
      • 2.cxd3#
    • 1...Re3
      • 2.Sd2#
    • 1...Rf3
      • 2.gxf3#
    • 1...Rxg3
      • 2.Shxg3#
    • 1...Rc4
      • 2.c3#
    • 1...Rc5
      • 2.c4#
    • 1...Rxc6+
      • 2.Qxc6#
    • 1...Sg5
      • 2.Qxe5#
    • 1...Sd6
      • 2.Qxe5#
    • 1...Sd8
      • 2.Qxe5#
    • 1...Sh8
      • 2.Qxe5#
    • 1...exd4
      • 2.Rf4#
  • Tries
    • 1.Sd2+?
      • 1...Kxd4
        • 2.Qd3#
        • 2.Qc5#
      • 1...Ke3!
    • 1.Qe2+?
      • 1...Kxd4
        • 2.Qd3#
      • 1...Re3
        • 2.c4#
      • 1...Kd5!
    • 1.dxe5?
      • threat
        • 2.Rf4#
      • 1...Rxc6+
        • 2.Qxc6#
      • 1...Kd4
        • 2.Rf4#
      • 1...Rf3
        • 2.Qc4#
        • 2.gxf3#
      • 1...Rc5
        • 2.Qd3#
        • 2.c4#
      • 1...Sf5!
  • Keys
    • 1.Rh4!
      • 1...Rxc6+
        • 2.Qxc6#
      • 1...Kxd4
        • 2.Qd3#
      • 1...Rxc2
        • 2.Bxc2#
      • 1...Rxg3
        • 2.Shxg3#
      • 1...Sxg4
        • 2.Rxg4#
      • 1...exd4
        • 2.Rf4#
      • 1...Sf5
        • 2.gxf5#
      • 1...Ra3
        • 2.c3#
      • 1...Rb3
        • 2.cxb3#
      • 1...Rd3
        • 2.cxd3#
      • 1...Re3
        • 2.Sd2#
      • 1...Rf3
        • 2.gxf3#
      • 1...Rc4
        • 2.c3#
      • 1...Rc5
        • 2.c4#
      • 1...Sg8
        • 2.g5#
      • 1...Sg5
        • 2.Qxe5#
      • 1...Sd6
        • 2.Qxe5#
      • 1...Sd8
        • 2.Qxe5#
      • 1...Sh8
        • 2.Qxe5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(b);P-FLIGHT,P_SPINR(a),XP(H)::QAR1(J)
    • R(a);OGATE,P_SPINR(a),XP(E)::B(B),XR(a)
    • R(a);OGATE::B(B)+P(E)
    • R(a);OGATE,P_PINQ(J)::B(B)+P(E),XR(a)
    • R(a);OGATE::P(E),XR(a)
    • R(a);SBLOCK::S(C)
    • R(a);OGATE::P(F),XR(a)
    • R(a);XP(G)::S(K),XR(a)
    • R(a);CHECK,OGATE,XP(M)::QAB(J),XR(a)
    • S(f);N_GUARD::QAR1(J),XP(c)
    • P(c);N_GUARD,SBLOCK,XP(H)::R1(N)
  • Tries
    • Try
      • S(C);CHECK
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(J);CHECK
      • Vars
        • K(b);P-FLIGHT,P_SPINR(a),XP(H)::QAR1(J)
        • R(a);OGATE,P_SPINR(a)::B(B)+P(E)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • P(H);XP(c)
      • Threat
        • R1(N)
      • Vars
        • R(a);CHECK,OGATE,XP(M)::QAB(J),XR(a)
        • K(b);P-FLIGHT,P_SPINR(a)::R(N)
      • Refutation
        • S(e);
  • Actual
    • R(D);
    • Vars
      • R(a);CHECK,OGATE,XP(M)::QAB(J),XR(a)
      • K(b);P-FLIGHT,P_SPINR(a),XP(H)::QAR1(J)
      • R(a);OGATE,P_SPINR(a),XP(E)::B(B),XR(a)
      • R(a);XP(G)::S(K),XR(a)
      • S(e);OGATE,P_SPINS(e),XP(I)::R(D),XS(e)
      • P(c);N_GUARD,SBLOCK,XP(H)::R1(N)
      • S(e);OGATE::R(D)+P(I),XS(e)
      • R(a);OGATE::B(B)+P(E)
      • R(a);OGATE,P_PINQ(J)::B(B)+P(E),XR(a)
      • R(a);OGATE::P(E),XR(a)
      • R(a);SBLOCK::S(C)
      • R(a);OGATE::P(F),XR(a)
      • S(e);N_GUARD::R(D)+P(I)
      • S(f);N_GUARD::QAR1(J),XP(c)
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