MESON Chess Problem Database

Problem Display
PID: 17692 (b3q3/4R3/4N3/1Q1RBpPB/3pk2p/2b4r/1p6/1K1n4 w - - 0 1)

Mansfield, Comins

South African Chess Magazine, 1948

b3q3/4R3/4N3/1Q1RBpPB/3pk2p/2b4r/1p6/1K1n4

#2

8 + 10

3550 Complete Mansfield/II 1997

SOLUTION

  • SOUND
  • Sets
    • 1...Ke3
      • 2.Qe2#
  • Tries
    • 1.Sc5+?
      • 1...Ke3
        • 2.Qe2#
      • 1...Kxd5!
    • 1.Bh2?
      • threat
        • 2.Re5#
      • 1...Ke3
        • 2.Qe2#
      • 1...Qxb5
        • 2.Sf4#
      • 1...Qxh5
        • 2.Sxd4#
      • 1...Bxd5
        • 2.Sc5#
      • 1...Qb8
        • 2.Sc7#
      • 1...Qh8
        • 2.Sg7#
      • 1...d3!
    • 1.Bd6?
      • threat
        • 2.Re5#
      • 1...Ke3
        • 2.Qe2#
      • 1...Qxb5
        • 2.Sf4#
      • 1...Qxh5
        • 2.Sxd4#
      • 1...Bxd5
        • 2.Sc5#
      • 1...Qh8
        • 2.Sg7#
      • 1...d3!
    • 1.Bc7?
      • threat
        • 2.Re5#
      • 1...Ke3
        • 2.Qe2#
      • 1...Qxb5
        • 2.Sf4#
      • 1...Qxh5
        • 2.Sxd4#
      • 1...Bxd5
        • 2.Sc5#
      • 1...Qh8
        • 2.Sg7#
      • 1...d3!
    • 1.Rxd4+?
      • 1...Ke3
        • 2.Qe2#
      • 1...Bxd4!
  • Keys
    • 1.Bg3!
      • threat
        • 2.Re5#
      • 1...Ke3
        • 2.Qe2#
      • 1...Qxb5
        • 2.Sf4#
      • 1...Qxh5
        • 2.Sxd4#
      • 1...Bxd5
        • 2.Sc5#
      • 1...Qb8
        • 2.Sc7#
      • 1...Qh8
        • 2.Sg7#
      • 1...d3
        • 2.Qxd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • K(f);P-FLIGHT::QAR1(B)
  • Tries
    • Try
      • S(G);CHECK
      • Vars
        • K(f);P-FLIGHT::QAR1(B)
      • Refutation
        • K(f);S_FLIGHT,XR(C)
    • Try
      • B(D);
      • Threat
        • R1(C)
      • Vars
        • K(f);P-FLIGHT::QAR1(B)
        • Q(j);N_GUARD,XQ(B)::R(H)+S(G)
        • Q(j);N_GUARD,XB(F)::R(H)+S(G),XP(e)
        • B(i);SBLOCK,XR(C)::R(H)+S(G),DCHECK
        • Q(j);N_GUARD::R(H)+S(G)
      • Refutation
        • P(e);
    • Try
      • B(D);
      • Threat
        • R1(C)
      • Vars
        • K(f);P-FLIGHT::QAR1(B)
        • Q(j);N_GUARD,XQ(B)::R(H)+S(G)
        • Q(j);N_GUARD,XB(F)::R(H)+S(G),XP(e)
        • B(i);SBLOCK,XR(C)::R(H)+S(G),DCHECK
        • Q(j);N_GUARD::R(H)+S(G)
      • Refutation
        • P(e);
    • Try
      • B(D);
      • Threat
        • R1(C)
      • Vars
        • K(f);P-FLIGHT::QAR1(B)
        • Q(j);N_GUARD,XQ(B)::R(H)+S(G)
        • Q(j);N_GUARD,XB(F)::R(H)+S(G),XP(e)
        • B(i);SBLOCK,XR(C)::R(H)+S(G),DCHECK
        • Q(j);N_GUARD::R(H)+S(G)
      • Refutation
        • P(e);
    • Try
      • R(C);CHECK,XP(e)
      • Vars
        • K(f);P-FLIGHT::QAR1(B)
      • Refutation
        • B(c);XR(C)
  • Actual
    • B(D);
    • Threat
      • R1(C)
    • Vars
      • K(f);P-FLIGHT::QAR1(B)
      • Q(j);N_GUARD,XQ(B)::R(H)+S(G)
      • Q(j);N_GUARD,XB(F)::R(H)+S(G),XP(e)
      • B(i);SBLOCK,XR(C)::R(H)+S(G),DCHECK
      • Q(j);N_GUARD::R(H)+S(G)
      • P(e);::QAB1(B),XP(e)
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