MESON Chess Problem Database

Problem Display
PID: 132110 (B4B2/1rp1QK2/3pN3/n2kNR2/p7/r7/8/4R1b1 w - - 0 1)

Andrieu, Daniel

Source?, 0000

B4B2/1rp1QK2/3pN3/n2kNR2/p7/r7/8/4R1b1

#2

8 + 8

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Sd3+?
      • 1...Kc6
        • 2.Qxc7#
      • 1...Kc4!
    • 1.Sf3+?
      • 1...Kc6
        • 2.Qxc7#
      • 1...Kc4!
    • 1.Sc4+?
      • 1...Kc6
        • 2.Sd8#
        • 2.Qxc7#
        • 2.Qe8#
      • 1...Kxc4!
    • 1.Sg4+?
      • 1...Kc6
        • 2.Qxc7#
      • 1...Kc4!
    • 1.Sc6+?
      • 1...Kxc6
        • 2.Qxc7#
      • 1...Kc4!
    • 1.Sg6+?
      • 1...Kc6
        • 2.Qxc7#
      • 1...Kc4!
    • 1.Sd7+?
      • 1...Kc6
        • 2.Sd8#
      • 1...Kc4!
    • 1.Sxc7+?
      • 1...Kc5
        • 2.Qxd6#
      • 1...Kd4!
    • 1.Bxb7+?
      • 1...Sc6
        • 2.Bxc6#
      • 1...c6
        • 2.Qxd6#
      • 1...Sxb7!
  • Keys
    • 1.Qh4!
      • threat
        • 2.Qe4#
      • 1...c5+
        • 2.Sc7#
      • 1...c6+
        • 2.Sd7#
      • 1...Re3
        • 2.Qd4#
      • 1...Be3
        • 2.Qh1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(B);CHECK
      • Vars
        • K(e);S_FLIGHT::QAR1(E),XP(h)
      • Refutation
        • K(e);N_SPINR(g),S_FLIGHT
    • Try
      • S(B);CHECK
      • Vars
        • K(e);S_FLIGHT::QAR1(E),XP(h)
      • Refutation
        • K(e);N_SPINR(g),S_FLIGHT
    • Try
      • S(B);CHECK
      • Refutation
        • K(e);N_SPINR(g),S_FLIGHT,XS(B)
    • Try
      • S(B);CHECK
      • Vars
        • K(e);S_FLIGHT::QAR1(E),XP(h)
      • Refutation
        • K(e);N_SPINR(g),S_FLIGHT
    • Try
      • S(B);CHECK,N_PINR(g)
      • Vars
        • K(e);P_SPINR(g),S_FLIGHT,XS(B)::QAR1(E),XP(h)
      • Refutation
        • K(e);S_FLIGHT
    • Try
      • S(B);CHECK
      • Vars
        • K(e);S_FLIGHT::QAR1(E),XP(h)
      • Refutation
        • K(e);N_SPINR(g),S_FLIGHT
    • Try
      • S(B);CHECK
      • Vars
        • K(e);S_FLIGHT::S(D)
      • Refutation
        • K(e);N_SPINR(g),S_FLIGHT
    • Try
      • S(D);CHECK,XP(h)
      • Vars
        • K(e);N_SPINR(g),P-FLIGHT,P_SPINP(f)::QAB1(E),XP(f)
      • Refutation
        • K(e);N_SPINR(g),P-FLIGHT
    • Try
      • B(G);CHECK,XR(g)
      • Vars
        • S(d);N_GUARD,P_SPINS(d)::B(G),XS(d)
        • P(h);P_SPINP(h)::QAR1(E),XP(f)
      • Refutation
        • S(d);XB(G)
  • Actual
    • Q(E);
    • Threat
      • QAB1(E)
    • Vars
      • P(h);CHECK,SBLOCK::S(D)
      • P(h);CHECK,N_SPINR(g),SBLOCK::R(C)+S(B)
      • R(b);S_CUTB(a)::QAR1(E)
      • B(a);S_CUTR(b)::QAB(E)
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