MESON Chess Problem Database

Problem Display
PID: 268780 (8/bpQ5/4Pp2/3p1P2/Np1kB1Np/2pP1p2/b2n1Kp1/3RR1B1 w - - 0 1)

Gomez, Luis

Uris, Miguel

Problemas, 2020

8/bpQ5/4Pp2/3p1P2/Np1kB1Np/2pP1p2/b2n1Kp1/3RR1B1

#2

11 + 12

SOLUTION

  • SOUND
  • Sets
    • 1...Bc5
      • 2.Qxc5#
    • 1...Bb6
      • 2.Qxb6#
    • 1...Bb8
      • 2.Qb6#
      • 2.Qc5#
    • 1...Sb1
      • 2.Kxf3#
    • 1...Sb3
      • 2.Kxf3#
    • 1...Sc4
      • 2.dxc4#
    • 1...Sxe4+
      • 2.dxe4#
    • 1...b3
      • 2.Qxc3#
    • 1...b5
      • 2.Qxa7#
  • Tries
    • 1.Bxf3?
      • threat
        • 2.Ke2#
      • 1...Se4+
        • 2.dxe4#
      • 1...Sxf3
        • 2.Kxf3#
        • 2.Qf4#
      • 1...Sf1
        • 2.Qf4#
      • 1...Sc4
        • 2.Qf4#
        • 2.dxc4#
      • 1...Kxd3+!
    • 1.Qf4?
      • threat
        • 2.Qe3#
      • 1...Sxe4+
        • 2.Kxf3#
      • 1...Sf1
        • 2.Bxf3#
      • 1...Sc4
        • 2.Bxf3#
      • 1...dxe4!
  • Keys
    • 1.Qd8!
      • threat
        • 2.Qxf6#
      • 1...Sxe4+
        • 2.Rxe4#
      • 1...Bb8
        • 2.Qb6#
      • 1...Sc4
        • 2.Qxd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 1
    • REMOVED MATES = 6
  • Sets
    • B(k);N_GUARD::QAB1(K),XB(k)
    • B(k);N_GUARD::QAB(K),XB(k)
    • S(b);::B(C)+K(D),XP(e)
    • S(b);OGATE::R(A)+P(E),XS(b)
    • S(b);CHECK,OGATE,XB(G)::R(A)+P(E),XS(b)
    • P(f);N_GUARD::QAB1(K),XP(d)
    • P(l);OGATE::QAB(K),XB(k)
  • Tries
    • Try
      • B(G);XP(e)
      • Threat
        • B(C)+K(D)
      • Vars
        • S(b);CHECK,OGATE::R(A)+P(E),XS(b)
        • S(b);N_GUARD::QAR2(K)
      • Refutation
        • K(g);CHECK,P-FLIGHT,P_SPINS(b),XP(E)
    • Try
      • Q(K);
      • Threat
        • QAB1(K)
      • Vars
        • S(b);CHECK,P_SPINS(b),XB(G)::B(C)+K(D),XP(e)
        • S(b);N_GUARD::QAR(K)+B(G),XP(e)
      • Refutation
        • P(i);P_SPINP(i),XB(G)
  • Actual
    • Q(K);P_PINP(i)
    • Threat
      • QAB(K),XP(j)
    • Vars
      • S(b);CHECK,OGATE,XB(G)::R1(B),XS(b)
      • B(k);N_GUARD::QAB(K)
      • S(b);S_CUTB(a)::QAR1(K),XP(i)
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