MESON Chess Problem Database

Problem Display
PID: 10211 (5n1B/b1N2P2/2Q1p2p/R1p2k2/r4pR1/r1N3pP/4P3/1b4K1 w - - 0 1)

Mansfield, Comins

2nd Prize=, To Mat, 1962

5n1B/b1N2P2/2Q1p2p/R1p2k2/r4pR1/r1N3pP/4P3/1b4K1

#2

10 + 11

3550 Complete Mansfield/II 1997

SOLUTION

  • SOUND
  • Sets
    • 1...Sg6
      • 2.Qxe6#
    • 1...Sd7
      • 2.Qxe6#
    • 1...Sh7
      • 2.Qxe6#
    • 1...e5
      • 2.Qf6#
  • Tries
    • 1.S3b5?
      • threat
        • 2.Sd6#
      • 1...c4+
        • 2.Sd4#
      • 1...Rd4
        • 2.Sxd4#
      • 1...Rd3!
    • 1.S7b5?
      • threat
        • 2.Sd6#
      • 1...c4+
        • 2.Sd4#
      • 1...Rd4
        • 2.Sxd4#
      • 1...e5
        • 2.Qf6#
      • 1...Bb8!
    • 1.S7d5?
      • threat
        • 2.Se7#
      • 1...c4+
        • 2.Se3#
      • 1...exd5
        • 2.Qxd5#
        • 2.Qf6#
      • 1...Sg6!
    • 1.Rxc5+?
      • 1...e5
        • 2.Qf6#
      • 1...Bxc5+!
    • 1.Qd5+?
      • 1...e5
        • 2.Qxe5#
      • 1...exd5!
    • 1.Qd6?
      • threat
        • 2.Qe5#
      • 1...Sg6
        • 2.Qxe6#
      • 1...Sd7
        • 2.Qxe6#
      • 1...e5
        • 2.Qxe5#
        • 2.Qf6#
      • 1...Re4!
  • Keys
    • 1.S3d5!
      • threat
        • 2.Se7#
      • 1...c4+
        • 2.Se3#
      • 1...Ke4
        • 2.Rxf4#
      • 1...exd5
        • 2.Qxd5#
      • 1...Sg6
        • 2.Qxe6#

This is a version

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 3
  • Sets
    • S(k);N_GUARD::QAB1(G),XP(h)
    • P(h);N_SPINP(f),OGATE::QAR1(G)
  • Tries
    • Try
      • S(C);N_PINP(f)
      • Threat
        • S(C)
      • Vars
        • P(f);CHECK::R(F)+S(C),DCHECK
        • R(d);N_GUARD::S(C),XR(d)
      • Refutation
        • R(b);
    • Try
      • S(H);N_PINP(f)
      • Threat
        • S(H)
      • Vars
        • P(f);CHECK::R(F)+S(H),DCHECK
        • R(d);N_GUARD::S(H),XR(d)
        • P(h);OGATE::QAR1(G)
      • Refutation
        • B(j);
    • Try
      • S(H);N_PINP(f)
      • Threat
        • S(H)
      • Vars
        • P(f);CHECK::R(F)+S(H),DCHECK
      • Refutation
        • S(k);
    • Try
      • R(F);CHECK,P_SPINR(F),XP(f)
      • Vars
        • P(h);OGATE,P_SPINP(h)::QAR1(G)
      • Refutation
        • B(j);CHECK,XR(F)
    • Try
      • Q(G);CHECK,N_PINP(f)
      • Vars
        • P(h);P_SPINP(h)::QAR1(G),XP(h)
      • Refutation
        • P(h);XQ(G)
    • Try
      • Q(G);
      • Threat
        • QAR1(G)
      • Vars
        • S(k);N_GUARD::QAB1(G),XP(h)
      • Refutation
        • R(d);
  • Actual
    • S(C);N_PINP(f)
    • Threat
      • S(C)
    • Vars
      • P(f);CHECK::R(F)+S(C),DCHECK
      • K(g);P_SPINP(e),S_FLIGHT::R1(E),XP(e)
      • P(h);OGATE,XS(C)::QAR2(G),XP(h)
      • S(k);N_GUARD::QAB1(G),XP(h)
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