MESON Chess Problem Database

Problem Display
PID: 169 (5N2/8/R2P4/3kB2R/2p1r2q/KN6/Q1P5/7B w - - 0 1)

Mansfield, Comins

1st Prize, Chess, 1954

5N2/8/R2P4/3kB2R/2p1r2q/KN6/Q1P5/7B

#2

10 + 4

4258 Brian Harley Award 1954
3105 FIDE Album (1945-1955) 1964
3550 Complete Mansfield/II 1997
56 The Problemist 2004
102 Probleemblad 2011

SOLUTION

  • SOUND
  • Sets
    • 1...Qe1
      • 2.Ba1#
      • 2.Bb2#
      • 2.Bh2#
      • 2.Bc3#
      • 2.Bg3#
      • 2.Bd4#
      • 2.Bf4#
      • 2.Bf6#
      • 2.Bg7#
      • 2.Bh8#
    • 1...Qf2
      • 2.Bf4#
    • 1...Qg3
      • 2.Bxg3#
    • 1...Qf6
      • 2.Bxf6#
    • 1...Qd8
      • 2.Bf6#
    • 1...Qh2
      • 2.Bxh2#
    • 1...Qf4
      • 2.Bxf4#
  • Tries
    • 1.Ba1+?
      • 1...Qg5
        • 2.Rxg5#
      • 1...Qxh5!
    • 1.Bb2+?
      • 1...Qg5
        • 2.Rxg5#
      • 1...Qxh5!
    • 1.Bh2+?
      • 1...Qg5
        • 2.Rxg5#
      • 1...Qxh5!
    • 1.Bc3+?
      • 1...Qg5
        • 2.Rxg5#
      • 1...Qxh5!
    • 1.Bg3+?
      • 1...Qg5
        • 2.Rxg5#
      • 1...Qxh5!
    • 1.Bd4+?
      • 1...Qg5
        • 2.Rxg5#
      • 1...Qxh5!
    • 1.Bf4+?
      • 1...Qg5
        • 2.Rxg5#
      • 1...Qxh5!
    • 1.Bf6+?
      • 1...Qg5
        • 2.Rxg5#
      • 1...Qxh5!
    • 1.Bg7+?
      • 1...Qg5
        • 2.Rxg5#
      • 1...Qxh5!
    • 1.Bh8+?
      • 1...Qg5
        • 2.Rxg5#
      • 1...Qxh5!
  • Keys
    • 1.Kb4!
      • threat
        • 2.Qa5#
      • 1...Qe1+
        • 2.Bc3#
      • 1...cxb3+
        • 2.c4#
      • 1...c3+
        • 2.Sd4#
      • 1...Qf2
        • 2.Bf4#
      • 1...Qd8
        • 2.Bf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 4
  • Sets
    • Q(c);N_GUARD::R(G)+B(F)
    • Q(c);N_GUARD,P_PINS(E)::R(G)+B(F),XQ(c)
    • Q(c);N_GUARD::R(G)+B(F),XQ(c)
  • Tries
    • Try
      • B(F);CHECK
      • Vars
        • Q(c);N_GUARD,P_SPINQ(c)::R(G),XQ(c)
      • Refutation
        • Q(c);XR(G)
    • Try
      • B(F);CHECK
      • Vars
        • Q(c);N_GUARD,P_SPINQ(c)::R(G),XQ(c)
      • Refutation
        • Q(c);XR(G)
    • Try
      • B(F);CHECK
      • Vars
        • Q(c);N_GUARD,P_SPINQ(c)::R(G),XQ(c)
      • Refutation
        • Q(c);XR(G)
    • Try
      • B(F);CHECK
      • Vars
        • Q(c);N_GUARD,P_SPINQ(c)::R(G),XQ(c)
      • Refutation
        • Q(c);XR(G)
    • Try
      • B(F);CHECK
      • Vars
        • Q(c);N_GUARD,P_SPINQ(c)::R(G),XQ(c)
      • Refutation
        • Q(c);XR(G)
    • Try
      • B(F);CHECK
      • Vars
        • Q(c);N_GUARD,P_SPINQ(c)::R(G),XQ(c)
      • Refutation
        • Q(c);XR(G)
    • Try
      • B(F);CHECK
      • Vars
        • Q(c);N_GUARD,P_SPINQ(c)::R(G),XQ(c)
      • Refutation
        • Q(c);XR(G)
    • Try
      • B(F);CHECK
      • Vars
        • Q(c);N_GUARD,P_SPINQ(c)::R(G),XQ(c)
      • Refutation
        • Q(c);XR(G)
    • Try
      • B(F);CHECK
      • Vars
        • Q(c);N_GUARD,P_SPINQ(c)::R(G),XQ(c)
      • Refutation
        • Q(c);XR(G)
    • Try
      • B(F);CHECK
      • Vars
        • Q(c);N_GUARD,P_SPINQ(c)::R(G),XQ(c)
      • Refutation
        • Q(c);XR(G)
  • Actual
    • K(D);S_FLIGHT
    • Threat
      • QAR(B)
    • Vars
      • Q(c);CHECK,N_GUARD::R(G)+B(F)
      • P(a);CHECK,OGATE,P_SPINP(a),XS(E)::P(C)
      • P(a);CHECK::QAB(B)+S(E)
      • Q(c);N_GUARD::R(G)+B(F)
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