MESON Chess Problem Database

Problem Display
PID: 10432 (3R3q/1p4r1/2PN4/NK1BpP2/Rp1kP3/P4Q2/8/1r6 w - - 0 1)

Mansfield, Comins

Problemnoter, 1964

3R3q/1p4r1/2PN4/NK1BpP2/Rp1kP3/P4Q2/8/1r6

#2

11 + 7

4054 Complete Mansfield/III 1999

SOLUTION

  • SOUND
  • Sets
    • 1...Ra1
      • 2.Sb3#
      • 2.Rxb4#
    • 1...Rc1
      • 2.Sb3#
    • 1...Rd1
      • 2.Sb3#
      • 2.Rxb4#
    • 1...Re1
      • 2.Sb3#
      • 2.Rxb4#
    • 1...Rf1
      • 2.Sb3#
      • 2.Rxb4#
    • 1...Rbg1
      • 2.Sb3#
      • 2.Rxb4#
    • 1...Rh1
      • 2.Sb3#
      • 2.Rxb4#
    • 1...Rb3
      • 2.Sxb3#
    • 1...bxc6+
      • 2.Sxc6#
  • Tries
    • 1.Kb6?
      • threat
        • 2.Sb5#
      • 1...bxc6
        • 2.Sxc6#
      • 1...Qxd8+!
    • 1.Sdc4?
      • threat
        • 2.Qe3#
      • 1...bxa3+
        • 2.Sb2#
      • 1...bxc6+
        • 2.Sxc6#
      • 1...Qh3
        • 2.Bf7#
      • 1...Re1
        • 2.Sb3#
      • 1...Rb3
        • 2.Sxb3#
      • 1...Rg3
        • 2.Bg8#
      • 1...Qh6!
  • Keys
    • 1.Bc4!
      • threat
        • 2.Qd3#
      • 1...bxa3+
        • 2.Bb3#
      • 1...bxc6+
        • 2.Sxc6#
      • 1...Qh3
        • 2.Sf7#
      • 1...Rd1
        • 2.Sb3#
      • 1...Rb3
        • 2.Sxb3#
      • 1...Rg3
        • 2.Se8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • R(a);N_GUARD::S(E)
    • R(a);N_GUARD::S(E),XR(a)
    • P(e);CHECK,XP(I)::S(E),XP(e)
  • Tries
    • Try
      • K(F);P-FLIGHT
      • Threat
        • S(J)
      • Vars
        • P(e);XP(I)::S(E),XP(e)
      • Refutation
        • Q(g);CHECK,XR(K)
    • Try
      • S(J);N_PINP(b)
      • Threat
        • QAB1(B)
      • Vars
        • P(b);CHECK,XP(A)::R(C)+S(J)
        • P(e);CHECK,XP(I)::S(E),XP(e)
        • Q(g);N_GUARD::R(K)+B(G)
        • R(a);N_GUARD::S(E)
        • R(a);N_GUARD::S(E),XR(a)
        • R(f);N_GUARD::R(K)+B(G)
      • Refutation
        • Q(g);
  • Actual
    • B(G);N_PINP(b)
    • Threat
      • QAR1(B)
    • Vars
      • P(b);CHECK,OGATEB,XP(A)::R(C)+B(G)
      • P(e);CHECK,XP(I)::S(E),XP(e)
      • Q(g);N_GUARD::R(K)+S(J)
      • R(a);N_GUARD::S(E)
      • R(a);N_GUARD::S(E),XR(a)
      • R(f);N_GUARD::R(K)+S(J)
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