MESON Chess Problem Database

Problem Display
PID: 6829 (8/1p2KN2/b4N2/3P1k1P/5pp1/2nR2p1/2Qn4/b7 w - - 0 1)

Mansfield, Comins

1st Prize, Western Morning News, 1933/II

(First published on Sat Jul 22 1933)

8/1p2KN2/b4N2/3P1k1P/5pp1/2nR2p1/2Qn4/b7

#2

7 + 9

371 The Chess Review 1936
102 Probleemblad 1974
3550 Complete Mansfield/II 1997
14868 Pirnie Collection 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Sc4
      • 2.Rxc3#
    • 1...Sb1
      • 2.Qc8#
    • 1...Sd1
      • 2.Qc8#
    • 1...Sa2
      • 2.Qc8#
    • 1...Se2
      • 2.Qc8#
    • 1...Sa4
      • 2.Qc8#
    • 1...Se4
      • 2.Qc8#
    • 1...Sb5
      • 2.Rxd2#
      • 2.Qc8#
    • 1...Sxd5+
      • 2.Rxd5#
    • 1...f3
      • 2.Rxf3#
  • Tries
    • 1.Sd6+?
      • 1...Ke5
        • 2.Sxg4#
        • 2.Sd7#
      • 1...Kg5!
    • 1.Rxd2+?
      • 1...Se4
        • 2.Qxe4#
        • 2.Qc8#
      • 1...Bd3!
    • 1.Rxc3+?
      • 1...Se4
        • 2.Qxe4#
      • 1...Bd3!
    • 1.Re3+?
      • 1...Bd3
        • 2.Re5#
      • 1...Sce4
        • 2.Qc8#
      • 1...Sde4!
  • Keys
    • 1.Se8!
      • threat
        • 2.Sed6#
      • 1...Sxd5+
        • 2.Rxd5#
      • 1...Ke4
        • 2.Sed6#
      • 1...f3
        • 2.Rxf3#
      • 1...Sc4
        • 2.Rxc3#
      • 1...Sde4
        • 2.Sg7#
      • 1...Sce4
        • 2.Qc8#
      • 1...Sb5
        • 2.Rxd2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 5
  • Sets
    • S(b);N_GUARD,S_CUTB(h)::QAB(A)+R(B),XS(c)
    • S(c);OGATE::QAB(A)
    • S(c);CHECK,OGATE,XP(C)::QAB(A)+R(B),DCHECK,XS(c)
    • P(e);::QAB(A)+R(B),DCHECK,XP(e)
  • Tries
    • Try
      • S(G);CHECK
      • Refutation
        • K(g);P-FLIGHT
    • Try
      • R(B);CHECK,XS(b)
      • Refutation
        • B(h);P_SPINB(h)
    • Try
      • R(B);CHECK,XS(c)
      • Vars
        • S(b);N_GUARD,P_SPINS(b)::QAB1(A),XS(b)
      • Refutation
        • B(h);P_SPINB(h)
    • Try
      • R(B);CHECK
      • Vars
        • B(h);P_SPINB(h)::R1(B)
        • S(c);OGATE,P_SPINS(c)::QAB(A)
      • Refutation
        • S(b);P_SPINS(b)
  • Actual
    • S(E);
    • Threat
      • S(E)
    • Vars
      • S(c);CHECK,OGATE,XP(C)::QAB(A)+R(B),DCHECK,XS(c)
      • K(g);S_FLIGHT::S(E)
      • P(e);::QAB(A)+R(B),DCHECK,XP(e)
      • S(b);N_GUARD,S_CUTB(h)::QAB(A)+R(B),XS(c)
      • S(b);SBLOCK::S(E)
      • S(c);OGATE,SBLOCK::QAB(A)
      • S(c);N_GUARD,S_CUTB(h)::QAB(A)+R(B),XS(b)
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