MESON Chess Problem Database

Problem Display
PID: 17245 (7b/1K3Q2/1p1P4/5p2/2N1kp2/1N1prn2/3p2r1/7B w - - 0 1)

Mansfield, Comins

Tijdschrift vd NSB, 1925

7b/1K3Q2/1p1P4/5p2/2N1kp2/1N1prn2/3p2r1/7B

#2

6 + 10

3202 Complete Mansfield/I 1996

SOLUTION

  • SOUND
  • Sets
    • 1...Sd4
      • 2.Sbxd2#
    • 1...Se5
      • 2.Scxd2#
  • Tries
    • 1.Kxb6?
      • threat
        • 2.Qb7#
      • 1...Sd4
        • 2.Sbxd2#
      • 1...Se5
        • 2.Scxd2#
      • 1...Rg7
        • 2.Qe6#
      • 1...Bd4+!
    • 1.Ka7?
      • threat
        • 2.Qb7#
      • 1...Sd4
        • 2.Sbxd2#
      • 1...Se5
        • 2.Scxd2#
      • 1...Rg7!
    • 1.Ka8?
      • threat
        • 2.Qb7#
      • 1...Sd4
        • 2.Sbxd2#
      • 1...Se5
        • 2.Scxd2#
      • 1...Rg7
        • 2.Qe6#
      • 1...Rg8+!
    • 1.Kb8?
      • threat
        • 2.Qb7#
      • 1...Sd4
        • 2.Sbxd2#
      • 1...Se5
        • 2.Scxd2#
      • 1...Rg7
        • 2.Qe6#
      • 1...Rg8+!
    • 1.Kc8?
      • threat
        • 2.Qb7#
      • 1...Sd4
        • 2.Sbxd2#
      • 1...Se5
        • 2.Scxd2#
      • 1...Rg7
        • 2.Qe6#
      • 1...Rg8+!
    • 1.Qe6+?
      • 1...Se5
        • 2.Scxd2#
      • 1...Be5!
  • Keys
    • 1.Ka6!
      • threat
        • 2.Qb7#
      • 1...Sd4
        • 2.Sbxd2#
      • 1...Se5
        • 2.Scxd2#
      • 1...Rg7
        • 2.Qe6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • S(e);N_GUARD,P_SPINR(b),SBLOCK::S(B),XP(a)
    • S(e);N_GUARD,P_SPINR(b),SBLOCK::S(C),XP(a)
  • Tries
    • Try
      • K(E);P-FLIGHT,XP(i)
      • Threat
        • QAB(F)
      • Vars
        • S(e);N_GUARD,P_SPINR(b),SBLOCK::S(B),XP(a)
        • S(e);N_GUARD,P_SPINR(b),SBLOCK::S(C),XP(a)
        • R(b);P_SPINS(e),S_CUTB(j)::QAR2(F)
      • Refutation
        • B(j);CHECK
    • Try
      • K(E);P-FLIGHT
      • Threat
        • QAB(F)
      • Vars
        • S(e);N_GUARD,P_SPINR(b),SBLOCK::S(B),XP(a)
        • S(e);N_GUARD,P_SPINR(b),SBLOCK::S(C),XP(a)
      • Refutation
        • R(b);P_PINQ(F),P_SPINS(e)
    • Try
      • K(E);S_FLIGHT
      • Threat
        • QAB(F)
      • Vars
        • S(e);N_GUARD,P_SPINR(b),SBLOCK::S(B),XP(a)
        • S(e);N_GUARD,P_SPINR(b),SBLOCK::S(C),XP(a)
        • R(b);P_SPINS(e),S_CUTB(j)::QAR2(F)
      • Refutation
        • R(b);CHECK,P_SPINS(e)
    • Try
      • K(E);P-FLIGHT
      • Threat
        • QAB(F)
      • Vars
        • S(e);N_GUARD,P_SPINR(b),SBLOCK::S(B),XP(a)
        • S(e);N_GUARD,P_SPINR(b),SBLOCK::S(C),XP(a)
        • R(b);P_SPINS(e),S_CUTB(j)::QAR2(F)
      • Refutation
        • R(b);CHECK,P_SPINS(e)
    • Try
      • K(E);S_FLIGHT
      • Threat
        • QAB(F)
      • Vars
        • S(e);N_GUARD,P_SPINR(b),SBLOCK::S(B),XP(a)
        • S(e);N_GUARD,P_SPINR(b),SBLOCK::S(C),XP(a)
        • R(b);P_SPINS(e),S_CUTB(j)::QAR2(F)
      • Refutation
        • R(b);CHECK,P_SPINS(e)
    • Try
      • Q(F);CHECK
      • Vars
        • S(e);P_SPINR(b),P_SPINS(e)::S(C),XP(a)
      • Refutation
        • B(j);P_SPINB(j)
  • Actual
    • K(E);S_FLIGHT
    • Threat
      • QAB(F)
    • Vars
      • S(e);N_GUARD,P_SPINR(b),SBLOCK::S(B),XP(a)
      • S(e);N_GUARD,P_SPINR(b),SBLOCK::S(C),XP(a)
      • R(b);P_SPINS(e),S_CUTB(j)::QAR2(F)
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