MESON Chess Problem Database

Problem Display
PID: 156712 (1n6/8/6B1/2N2Qn1/2pkrp2/2r1bR2/R5K1/B7 w - - 0 1)

Greenwell, Hubert

British Chess Magazine, 1905

1n6/8/6B1/2N2Qn1/2pkrp2/2r1bR2/R5K1/B7

#2

7 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Bc1
      • 2.Bxc3#
    • 1...Bg1
      • 2.Bxc3#
      • 2.Rd2#
    • 1...Bd2
      • 2.Rxd2#
    • 1...Bf2
      • 2.Bxc3#
      • 2.Rd2#
  • Tries
    • 1.Sb3+?
      • 1...Kd3
        • 2.Rd2#
        • 2.Qd5#
      • 1...cxb3!
    • 1.Rc2?
      • threat
        • 2.Bxc3#
      • 1...Bd2
        • 2.Rxd2#
      • 1...Re5!
  • Keys
    • 1.Sd3!
      • 1...Kxd3
        • 2.Qd5#
      • 1...Sxf3
        • 2.Qxe4#
      • 1...cxd3
        • 2.Ra4#
      • 1...Re5
        • 2.Qxe5#
      • 1...Re6
        • 2.Qc5#
      • 1...Re7
        • 2.Qc5#
      • 1...Re8
        • 2.Qc5#
      • 1...Bc1
        • 2.Qc5#
      • 1...Bg1
        • 2.Qc5#
      • 1...Bd2
        • 2.Qc5#
      • 1...Bf2
        • 2.Qc5#
      • 1...Sh3
        • 2.Qxe4#
      • 1...Se6
        • 2.Qxe4#
      • 1...Sf7
        • 2.Qxe4#
      • 1...Sh7
        • 2.Qxe4#
      • 1...Sa6
        • 2.Qd7#
      • 1...Sc6
        • 2.Qd7#
      • 1...Sd7
        • 2.Qxd7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 2
    • ADDED MATES = 16
    • REMOVED MATES = 0
  • Sets
    • B(b);::B(A),XR(a)
    • B(b);N_GUARD::R(B),XB(b)
  • Tries
    • Try
      • S(E);CHECK
      • Refutation
        • P(c);XS(E)
    • Try
      • R(B);
      • Threat
        • B(A),XR(a)
      • Vars
        • B(b);N_GUARD::R(B),XB(b)
      • Refutation
        • R(e);
  • Actual
    • S(E);
    • Vars
      • K(d);N_SPINR(a),P-FLIGHT,P_SPINB(b),P_SPINR(e),XS(E)::QAR2(F)
      • S(g);N_GUARD,XR(D)::QAR1(F),XR(e)
      • P(c);OGATEB,SBLOCK,XS(E)::R(B)
      • R(e);N_GUARD::QAB1(F),XR(e)
      • R(e);::QAB1(F)
      • B(b);::QAB1(F)
      • S(g);N_GUARD::QAR1(F),XR(e)
      • S(h);N_GUARD::QAR(F)
      • S(h);N_GUARD::QAR(F),XS(h)
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