MESON Chess Problem Database

Problem Display
PID: 143022 (3Nb3/3r2n1/1pR5/nP6/2pkpPQ1/3rN3/5P2/3RB1K1 w - - 0 1)

Cooper, HG

1st Prize, Sussex Ty., 1892

3Nb3/3r2n1/1pR5/nP6/2pkpPQ1/3rN3/5P2/3RB1K1

#2

10 + 9

15 British Chess Magazine 1892

SOLUTION

  • SOUND
  • Sets
    • 1...Rxd1
      • 2.Qxd1#
    • 1...Rd5
      • 2.Sc2#
    • 1...Rxd8
      • 2.Qxg7#
    • 1...Bh5
      • 2.Qxd7#
    • 1...Bg6
      • 2.Qxd7#
    • 1...Bf7
      • 2.Qxg7#
    • 1...Sb3
      • 2.Rxc4#
    • 1...Sb7
      • 2.Rxc4#
    • 1...Sf5
      • 2.Se6#
    • 1...Sh5
      • 2.Se6#
    • 1...Se6
      • 2.Sxe6#
    • 1...c3
      • 2.Bxc3#
  • Tries
    • 1.Bxa5?
      • threat
        • 2.Rxc4#
      • 1...Rxd1+
        • 2.Qxd1#
      • 1...Rd2
        • 2.Rxd2#
      • 1...Bf7
        • 2.Qxg7#
      • 1...c3
        • 2.Bxc3#
        • 2.Bxb6#
        • 2.Rc4#
      • 1...Rc7!
    • 1.Rxd3+?
      • 1...Kxd3
        • 2.Qd1#
      • 1...cxd3
        • 2.Bc3#
      • 1...exd3!
  • Keys
    • 1.Bb4!
      • 1...Rxd1+
        • 2.Qxd1#
      • 1...Rxd8
        • 2.Qxg7#
      • 1...Sxc6
        • 2.Sxc6#
      • 1...Rd2
        • 2.Rxd2#
      • 1...Rd5
        • 2.Sc2#
      • 1...Rd6
        • 2.Rxd6#
      • 1...Ra7
        • 2.Rd6#
      • 1...Rb7
        • 2.Rd6#
      • 1...Rc7
        • 2.Rd6#
      • 1...Re7
        • 2.Rd6#
      • 1...Rf7
        • 2.Rd6#
      • 1...Bh5
        • 2.Qxd7#
      • 1...Bg6
        • 2.Qxd7#
      • 1...Bf7
        • 2.Qxg7#
      • 1...Sb3
        • 2.Rxc4#
      • 1...Sb7
        • 2.Rxc4#
      • 1...Sf5
        • 2.Se6#
      • 1...Sh5
        • 2.Se6#
      • 1...Se6
        • 2.Sxe6#
      • 1...c3
        • 2.Bxc3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
    • R(a);N_SPINR(a),OGATE,P_PINB(B),XR(A)::QAR(G),XR(a)
    • R(g);SBLOCK::S(E)
    • R(g);N_GUARD,XS(J)::QAB(G),XS(h)
    • B(i);N_GUARD::QAR(G),XR(g)
    • B(i);S_CUTR(g)::QAB(G),XS(h)
    • S(e);N_GUARD::R1(I),XP(b)
    • S(h);N_GUARD::S(J)
    • S(h);N_GUARD::S(J),XS(h)
    • P(b);::B(B),XP(b)
  • Tries
    • Try
      • B(B);XS(e)
      • Threat
        • R1(I),XP(b)
      • Vars
        • R(a);CHECK,N_SPINR(a),OGATE,XR(A)::QAR(G),XR(a)
        • R(a);OGATEB::R(A),XR(a)
        • B(i);S_CUTR(g)::QAB(G),XS(h)
      • Refutation
        • R(g);
    • Try
      • R(A);CHECK,XR(a)
      • Vars
        • K(c);P-FLIGHT,XR(A)::QAR2(G)
        • P(b);SBLOCK,XR(A)::B(B)
      • Refutation
        • P(d);XR(A)
  • Actual
    • B(B);
    • Vars
      • R(a);CHECK,N_SPINR(a),OGATE,XR(A)::QAR(G),XR(a)
      • R(g);N_GUARD,XS(J)::QAB(G),XS(h)
      • S(e);XR(I)::S(J),XS(e)
      • R(a);OGATEB::R(A),XR(a)
      • R(g);SBLOCK::S(E)
      • R(g);N_GUARD::R(I),XR(g)
      • R(g);N_GUARD::R(I)
      • B(i);N_GUARD::QAR(G),XR(g)
      • B(i);S_CUTR(g)::QAB(G),XS(h)
      • S(e);N_GUARD::R1(I),XP(b)
      • S(h);N_GUARD::S(J)
      • S(h);N_GUARD::S(J),XS(h)
      • P(b);::B(B),XP(b)
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