MESON Chess Problem Database

Problem Display
PID: 71384 (k7/1pK1p3/1P1PB3/2p1Q1p1/1R4r1/1R4r1/6n1/7q w - - 0 1)

Bouttier, Pierre

L'Echiquier de Paris, 1954

k7/1pK1p3/1P1PB3/2p1Q1p1/1R4r1/1R4r1/6n1/7q

#2

7 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Qa1
      • 2.Qxa1#
    • 1...Qb1
      • 2.Qh8#
    • 1...Qc1
      • 2.Qh8#
    • 1...Qd1
      • 2.Qh8#
    • 1...Qe1
      • 2.Qh8#
    • 1...Qg1
      • 2.Qh8#
    • 1...Qh2
      • 2.Qa1#
    • 1...Qh3
      • 2.Qa1#
    • 1...Qh4
      • 2.Qa1#
    • 1...Qh5
      • 2.Qa1#
    • 1...Qh6
      • 2.Qa1#
    • 1...Qh7
      • 2.Qa1#
    • 1...Qh8
      • 2.Qxh8#
    • 1...Se1
      • 2.Qa1#
    • 1...Se3
      • 2.Ra3#
    • 1...Sf4
      • 2.Ra4#
    • 1...Sh4
      • 2.Qh8#
    • 1...cxb4
      • 2.Qa5#
    • 1...c4
      • 2.Ra4#
      • 2.Qa5#
  • Tries
    • 1.Bc4?
      • threat
        • 2.Ra4#
      • 1...cxb4
        • 2.Qa5#
      • 1...Qa1
        • 2.Qxa1#
      • 1...Qe1
        • 2.Qh8#
      • 1...Rxc4!
    • 1.Bxg4?
      • threat
        • 2.Ra4#
      • 1...Rxg4
        • 2.Ra3#
      • 1...cxb4
        • 2.Qa5#
      • 1...Qa1
        • 2.Qxa1#
      • 1...Qe1
        • 2.Qh8#
      • 1...Qf1!
    • 1.Bc8?
      • threat
        • 2.Bxb7#
      • 1...Se1
        • 2.Qa1#
      • 1...Se3
        • 2.Ra3#
      • 1...Sf4
        • 2.Ra4#
      • 1...Sh4!
    • 1.Qe4?
      • threat
        • 2.Ra4#
        • 2.Qxb7#
      • 1...cxb4
        • 2.Qxb7#
      • 1...Qf1
        • 2.Qxb7#
      • 1...Qa1
        • 2.Qxb7#
      • 1...Qe1
        • 2.Qxb7#
      • 1...Se1
        • 2.Ra4#
      • 1...Se3
        • 2.Ra3#
        • 2.Ra4#
      • 1...Sf4
        • 2.Ra4#
      • 1...Sh4
        • 2.Ra4#
      • 1...Rxe4!
  • Keys
    • 1.Bd5!
      • threat
        • 2.Bxb7#
      • 1...Se1
        • 2.Qa1#
      • 1...Se3
        • 2.Ra3#
      • 1...Sf4
        • 2.Ra4#
      • 1...Sh4
        • 2.Qh8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 14
  • Sets
    • Q(a);N_GUARD::QAB(C),XQ(a)
    • Q(a);N_GUARD::QAB1(C)
    • Q(a);N_GUARD::QAB(C)
    • Q(a);N_GUARD,SBLOCK::QAB(C)
    • Q(a);N_GUARD::QAB1(C),XQ(a)
    • S(b);S_CUTQ(a)::QAB(C)
    • S(b);S_CUTR(c)::R(A)
    • S(b);S_CUTR(d)::R(B)
    • S(b);S_CUTQ(a)::QAB1(C)
    • P(e);OGATE,XR(B)::QAR(C)
  • Tries
    • Try
      • B(F);
      • Threat
        • R(B)
      • Vars
        • P(e);OGATE,XR(B)::QAR(C)
        • Q(a);N_GUARD::QAB(C),XQ(a)
        • Q(a);N_GUARD::QAB1(C)
      • Refutation
        • R(d);XB(F)
    • Try
      • B(F);XR(d)
      • Threat
        • R(B)
      • Vars
        • R(c);N_GUARD,XB(F)::R(A)
        • P(e);OGATE,XR(B)::QAR(C)
        • Q(a);N_GUARD::QAB(C),XQ(a)
        • Q(a);N_GUARD::QAB1(C)
      • Refutation
        • Q(a);
    • Try
      • B(F);
      • Threat
        • B(F),XP(g)
      • Vars
        • S(b);S_CUTQ(a)::QAB(C)
        • S(b);S_CUTR(c)::R(A)
        • S(b);S_CUTR(d)::R(B)
      • Refutation
        • S(b);
    • Try
      • Q(C);P_PINP(g)
      • Threat
        • DUALS(2)
      • Vars
        • P(e);XR(B)::QAB1(C),XP(g)
        • Q(a);::QAB1(C),XP(g)
        • S(b);::R(B)
      • Refutation
        • R(d);N_SPINP(g),XQ(C)
  • Actual
    • B(F);P_PINP(g)
    • Threat
      • B(F),XP(g)
    • Vars
      • S(b);S_CUTQ(a)::QAB(C)
      • S(b);S_CUTR(c)::R(A)
      • S(b);S_CUTR(d)::R(B)
      • S(b);S_CUTQ(a)::QAB1(C)
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