MESON Chess Problem Database

Problem Display
PID: 24954 (6Q1/7p/b2b1N2/r2p3K/p1R5/1p1kBR2/3p4/3B4 w - - 0 1)

Mansfield, Comins

1st HM., Sahs (Latvia), 1960

6Q1/7p/b2b1N2/r2p3K/p1R5/1p1kBR2/3p4/3B4

#2

7 + 9

3550 Complete Mansfield/II 1997

SOLUTION

  • SOUND
  • Sets
    • 1...Bxc4
      • 2.Bg1#
      • 2.Bf2#
      • 2.Bc5#
      • 2.Bb6#
      • 2.Ba7#
    • 1...Bb5
      • 2.Qxd5#
    • 1...dxc4+
      • 2.Bc5#
    • 1...d4+
      • 2.Bg5#
  • Tries
    • 1.Rc2?
      • threat
        • 2.Bg1#
        • 2.Bf2#
        • 2.Bc5#
        • 2.Bb6#
        • 2.Ba7#
        • 2.Qxh7#
      • 1...d4+
        • 2.Bg5#
      • 1...Rc5
        • 2.Bg1#
        • 2.Bf2#
        • 2.Bxc5#
        • 2.Qxh7#
      • 1...Bc8
        • 2.Bg1#
        • 2.Bf2#
        • 2.Bc5#
        • 2.Bb6#
        • 2.Ba7#
      • 1...Bf4
        • 2.Qxh7#
      • 1...Bc5
        • 2.Bxc5#
        • 2.Qxh7#
      • 1...h6
        • 2.Bg1#
        • 2.Bf2#
        • 2.Bc5#
        • 2.Bb6#
        • 2.Ba7#
        • 2.Qh7#
        • 2.Qg6#
      • 1...bxc2!
  • Keys
    • 1.Sxd5!
      • threat
        • 2.Rd4#
      • 1...Rxd5+
        • 2.Qxd5#
      • 1...Kxc4
        • 2.Be2#
      • 1...Bxc4
        • 2.Qxh7#
      • 1...Bc5
        • 2.Sf4#
      • 1...Be5
        • 2.Sb4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 3
  • Sets
    • B(g);S_CUTR(e)::QAR2(G),XP(f)
    • P(f);CHECK,XR(D)::R(C)+B(B)
    • P(f);CHECK::R(C)+B(B)
  • Tries
    • Try
      • R(D);
      • Threat
        • DUALS(6)
      • Vars
        • P(f);CHECK,SBLOCK::R(C)+B(B)
        • B(h);::QAB(G),XP(i)
      • Refutation
        • P(b);XR(D)
  • Actual
    • S(F);P_SPINS(F),XP(f)
    • Threat
      • R1(D)
    • Vars
      • R(e);CHECK,OGATE,XS(F)::QAR2(G),XR(e)
      • K(c);S_FLIGHT,XR(D)::B(A)
      • B(g);SBLOCK,XR(D)::QAB(G),XP(i)
      • B(h);N_PINS(F)::S(F)
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