MESON Chess Problem Database

Problem Display
PID: 55168 (8/2Q5/2P1PP1p/2p1Nk1p/R6B/1B6/3K2P1/8 w - - 0 1)

Mansfield, Comins

Stella Polaris, 1972

8/2Q5/2P1PP1p/2p1Nk1p/R6B/1B6/3K2P1/8

#2

10 + 4

4054 Complete Mansfield/III 1999

SOLUTION

  • SOUND
  • Tries
    • 1.Sf3?
      • threat
        • 2.Qh7#
      • 1...Kg6
        • 2.Bc2#
      • 1...c4!
    • 1.Sg6?
      • threat
        • 2.Se7#
      • 1...Kxg6
        • 2.Bc2#
      • 1...c4!
    • 1.Sd7?
      • 1...Kg6
        • 2.Bc2#
      • 1...c4!
    • 1.Sf7?
      • 1...Kg6
        • 2.Bc2#
      • 1...c4!
    • 1.Qa5?
      • 1...Kxe5
        • 2.Qxc5#
      • 1...c4!
    • 1.Qb6?
      • 1...Kxe5
        • 2.Qxc5#
      • 1...c4!
    • 1.Qd8?
      • 1...Kxe5
        • 2.Qd5#
      • 1...c4!
    • 1.Qa7?
      • 1...Kxe5
        • 2.Qxc5#
      • 1...c4!
    • 1.Qd7?
      • 1...Kxe5
        • 2.Qd5#
      • 1...c4!
    • 1.Qe7?
      • 1...Kxe5
        • 2.Qxc5#
      • 1...c4!
  • Keys
    • 1.Sc4!
      • 1...Ke4
        • 2.Qe5#
      • 1...Kg4
        • 2.Se3#
      • 1...Kxe6
        • 2.Qd7#
      • 1...Kg6
        • 2.Bc2#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(F);
      • Threat
        • QAB(J)
      • Vars
        • K(b);S_FLIGHT::B(C)
      • Refutation
        • P(a);
    • Try
      • S(F);
      • Threat
        • S(F)
      • Vars
        • K(b);S_FLIGHT,XS(F)::B(C)
      • Refutation
        • P(a);
    • Try
      • S(F);
      • Vars
        • K(b);S_FLIGHT::B(C)
      • Refutation
        • P(a);
    • Try
      • S(F);
      • Vars
        • K(b);S_FLIGHT::B(C)
      • Refutation
        • P(a);
    • Try
      • Q(J);
      • Vars
        • K(b);OGATEB,P-FLIGHT,P_SPINP(a),XS(F)::QAR2(J),XP(a)
      • Refutation
        • P(a);
    • Try
      • Q(J);
      • Vars
        • K(b);OGATEB,P-FLIGHT,XS(F)::QAR2(J),XP(a)
      • Refutation
        • P(a);
    • Try
      • Q(J);
      • Vars
        • K(b);OGATEB,P-FLIGHT,XS(F)::QAR1(J)
      • Refutation
        • P(a);
    • Try
      • Q(J);
      • Vars
        • K(b);OGATEB,P-FLIGHT,XS(F)::QAR2(J),XP(a)
      • Refutation
        • P(a);
    • Try
      • Q(J);
      • Vars
        • K(b);OGATEB,P-FLIGHT,XS(F)::QAR1(J)
      • Refutation
        • P(a);
    • Try
      • Q(J);
      • Vars
        • K(b);OGATEB,P-FLIGHT,XS(F)::QAR2(J),XP(a)
      • Refutation
        • P(a);
  • Actual
    • S(F);
    • Vars
      • K(b);S_FLIGHT::QAR1(J)
      • K(b);S_FLIGHT::R(D)+S(F),DCHECK
      • K(b);OGATEB,S_FLIGHT,XP(H)::QAB1(J)
      • K(b);S_FLIGHT::B(C)
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