MESON Chess Problem Database

Problem Display
PID: 20915 (8/1n5B/KN2b1n1/p1pRb2N/R2rk1p1/1Q6/8/8 w - - 0 1)

Mansfield, Comins

3rd Prize, Brisbane Courier, 1914-1915

8/1n5B/KN2b1n1/p1pRb2N/R2rk1p1/1Q6/8/8

#2

7 + 9

3202 Complete Mansfield/I 1996

SOLUTION

  • SOUND
  • Sets
    • 1...Rxa4
      • 2.Qd3#
    • 1...Rb4
      • 2.Qd3#
    • 1...Rc4
      • 2.Qd3#
    • 1...Bf4
      • 2.Sf6#
    • 1...Bxd5
      • 2.Bxg6#
    • 1...Bg8
      • 2.Bxg6#
  • Tries
    • 1.Qe3+?
      • 1...Kf5
        • 2.Rxe5#
        • 2.Qxe5#
      • 1...Kxe3!
  • Keys
    • 1.Sc4!
      • threat
        • 2.Rxe5#
      • 1...Kxd5
        • 2.Qxb7#
      • 1...Kf5
        • 2.Rxe5#
      • 1...Rxc4
        • 2.Qd3#
      • 1...Rxd5
        • 2.Sd6#
      • 1...Bxd5
        • 2.Bxg6#
      • 1...Rd3
        • 2.Qxd3#
      • 1...Rd1
        • 2.Sd6#
      • 1...Rd2
        • 2.Sd6#
      • 1...Bh2
        • 2.Sd2#
      • 1...Bg3
        • 2.Sd2#
      • 1...Bf4
        • 2.Sf6#
      • 1...Bd6
        • 2.Sd2#
      • 1...Bf6
        • 2.Sd2#
      • 1...Bc7
        • 2.Sd2#
      • 1...Bg7
        • 2.Sd2#
      • 1...Bb8
        • 2.Sd2#
      • 1...Bh8
        • 2.Sd2#
      • 1...Bf5
        • 2.Sd2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 15
    • REMOVED MATES = 3
  • Sets
    • R(a);N_SPINR(a),XR(B)::QAB1(A)
    • R(a);::QAB1(A)
    • B(f);N_GUARD,SBLOCK::S(D)
    • B(g);N_GUARD,XR(C)::B(G),XS(h)
    • B(g);N_GUARD::B(G),XS(h)
  • Tries
    • Try
      • Q(A);CHECK
      • Refutation
        • K(b);N_SPINR(a),N_SPINS(h),P-FLIGHT,XQ(A)
  • Actual
    • S(F);N_PINR(a)
    • Threat
      • R1(C),XB(f)
    • Vars
      • K(b);N_SPINS(h),OGATEB,S_FLIGHT,XR(C)::QAB(A),XS(i)
      • K(b);P_SPINB(f),S_FLIGHT::R1(C),XB(f)
      • R(a);N_GUARD,P_SPINR(a),XS(F)::QAB1(A)
      • R(a);XR(C)::R(B)+S(F),DCHECK
      • B(g);N_GUARD,SBLOCK,XR(C)::B(G),XS(h)
      • R(a);N_GUARD::QAB1(A),XR(a)
      • R(a);::R(B)+S(F),DCHECK
      • B(f);::S(F)
      • B(f);N_GUARD,SBLOCK::S(D)
      • B(g);N_SPINS(h),SBLOCK::S(F)
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