MESON Chess Problem Database

Problem Display
PID: 10071 (2Q2n2/3nr1p1/2B1k3/6P1/7N/8/5R1B/5K2 w - - 0 1)

Mansfield, Comins

Sunday Times, 1961

2Q2n2/3nr1p1/2B1k3/6P1/7N/8/5R1B/5K2

#2

7 + 5

3550 Complete Mansfield/II 1997

SOLUTION

  • SOUND
  • Sets
    • 1...Re8
      • 2.Qxe8#
    • 1...g6
      • 2.Rf6#
  • Tries
    • 1.Bh1?
      • threat
        • 2.Qc4#
        • 2.Qc6#
      • 1...Re8
        • 2.Qxe8#
      • 1...Rf7!
    • 1.Bg2?
      • threat
        • 2.Qc4#
        • 2.Qc6#
      • 1...Re8
        • 2.Qxe8#
      • 1...Rf7!
    • 1.Be4?
      • threat
        • 2.Qc4#
        • 2.Qc6#
      • 1...Re8
        • 2.Qxe8#
      • 1...Rf7!
    • 1.Bb7?
      • threat
        • 2.Qc4#
        • 2.Qc6#
      • 1...Re8
        • 2.Qxe8#
      • 1...Rf7!
    • 1.Ba8?
      • threat
        • 2.Qc4#
        • 2.Qc6#
      • 1...Re8
        • 2.Qxe8#
      • 1...Rf7!
    • 1.Rf5?
      • threat
        • 2.Bd5#
      • 1...Re8
        • 2.Qxe8#
      • 1...Rf7!
    • 1.Rxf8?
      • 1...Re8
        • 2.Qxd7#
        • 2.Qxe8#
      • 1...g6
        • 2.Rf6#
      • 1...Rf7+!
    • 1.Qc7?
      • threat
        • 2.Qd6#
      • 1...Se5
        • 2.Qxe5#
      • 1...Sf6!
  • Keys
    • 1.Bf3!
      • threat
        • 2.Qc4#
      • 1...Kf7
        • 2.Bd5#
      • 1...Re8
        • 2.Qxe8#
      • 1...Rf7
        • 2.Re2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • R(c);OGATEB::QAR2(G),XR(c)
    • P(d);N_GUARD::R1(B)
  • Tries
    • Try
      • B(F);
      • Threat
        • DUALS(2)
      • Vars
        • R(c);OGATEB::QAR2(G),XR(c)
      • Refutation
        • R(c);P_PINR(B)
    • Try
      • B(F);
      • Threat
        • DUALS(2)
      • Vars
        • R(c);OGATEB::QAR2(G),XR(c)
      • Refutation
        • R(c);P_PINR(B)
    • Try
      • B(F);
      • Threat
        • DUALS(2)
      • Vars
        • R(c);OGATEB::QAR2(G),XR(c)
      • Refutation
        • R(c);P_PINR(B)
    • Try
      • B(F);
      • Threat
        • DUALS(2)
      • Vars
        • R(c);OGATEB::QAR2(G),XR(c)
      • Refutation
        • R(c);P_PINR(B)
    • Try
      • B(F);
      • Threat
        • DUALS(2)
      • Vars
        • R(c);OGATEB::QAR2(G),XR(c)
      • Refutation
        • R(c);P_PINR(B)
    • Try
      • R(B);
      • Threat
        • B(F)
      • Vars
        • R(c);OGATEB::QAR2(G),XR(c)
      • Refutation
        • R(c);P_PINR(B)
    • Try
      • R(B);XS(e)
      • Vars
        • P(d);N_GUARD::R1(B)
      • Refutation
        • R(c);CHECK
    • Try
      • Q(G);N_PINS(b)
      • Threat
        • QAR1(G)
      • Vars
        • S(b);N_GUARD::QAR1(G),XS(b)
      • Refutation
        • S(b);
  • Actual
    • B(F);
    • Threat
      • QAB(G)
    • Vars
      • K(a);N_SPINS(b),S_FLIGHT::R(B)+B(F),DCHECK
      • R(c);OGATEB::QAR2(G),XR(c)
      • R(c);SBLOCK::R(B)
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