MESON Chess Problem Database

Problem Display
PID: 272246 (8/2pN1Np1/rp3P1p/p1B1ppP1/2PpkP2/4P1P1/2P1KQ1b/7b w - - 0 1)

Simoni, Francesco

2nd Prize, Sinfonie Scacchistiche 50 JT, 2015

8/2pN1Np1/rp3P1p/p1B1ppP1/2PpkP2/4P1P1/2P1KQ1b/7b

#2

12 + 12

15601 Albrecht-Leiss-Degener Collection 2023

SOLUTION

  • SOUND
  • Sets
    • 1...Bg2
      • 2.Qxg2#
    • 1...Bf3+
      • 2.Qxf3#
    • 1...dxe3
      • 2.Qxe3#
    • 1...d3+
      • 2.cxd3#
    • 1...exf4
      • 2.Qxf4#
    • 1...bxc5
      • 2.Sxc5#
    • 1...hxg5
      • 2.Sxg5#
    • 1...c6
      • 2.Sd6#
    • 1...gxf6
      • 2.Sxf6#
  • Tries
    • 1.Qf1?
      • threat
        • 2.Qxh1#
      • 1...Bf3+
        • 2.Qxf3#
      • 1...d3+
        • 2.cxd3#
      • 1...exf4
        • 2.Qxf4#
      • 1...Bg2
        • 2.Qxg2#
      • 1...Bg1!
    • 1.exd4?
      • threat
        • 2.Qe3#
      • 1...Bf3+
        • 2.Qxf3#
      • 1...exd4
        • 2.Qxd4#
      • 1...exf4
        • 2.Qxf4#
      • 1...Bg1!
    • 1.fxe5?
      • threat
        • 2.Qf4#
      • 1...Bf3+
        • 2.Qxf3#
      • 1...d3+
        • 2.cxd3#
      • 1...hxg5
        • 2.Sxg5#
      • 1...f4
        • 2.Qxf4#
      • 1...Bxg3!
    • 1.gxh6?
      • threat
        • 2.Sg5#
      • 1...Bf3+
        • 2.Qxf3#
      • 1...d3+
        • 2.cxd3#
      • 1...gxf6
        • 2.Sxf6#
      • 1...g5
        • 2.Sxg5#
      • 1...gxh6!
    • 1.fxg7?
      • threat
        • 2.Sf6#
      • 1...Bf3+
        • 2.Qxf3#
      • 1...d3+
        • 2.cxd3#
      • 1...bxc5
        • 2.Sxc5#
      • 1...b5!
  • Keys
    • 1.Bxb6!
      • threat
        • 2.Sc5#
      • 1...Bf3+
        • 2.Qxf3#
      • 1...d3+
        • 2.cxd3#
      • 1...dxe3
        • 2.Qxe3#
      • 1...cxb6
        • 2.Sd6#
      • 1...c5
        • 2.Sxc5#
        • 2.Sd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 6
  • Sets
    • B(a);N_GUARD::QAB(C),XB(a)
    • B(a);CHECK,N_GUARD::QAB1(C),XB(a)
    • P(c);OGATE,XP(D)::QAR1(C),XP(c)
    • P(c);CHECK,OGATE::P(A),XP(c)
    • P(f);OGATE,XP(G)::QAR1(C),XP(f)
    • P(i);XB(H)::S(K),XP(i)
    • P(j);XP(I)::S(L),XP(j)
    • P(k);N_GUARD::S(L)
    • P(l);XP(J)::S(K),XP(l)
  • Tries
    • Try
      • Q(C);
      • Threat
        • QAB(C),XB(a)
      • Vars
        • B(a);CHECK,N_GUARD::QAB1(C),XB(a)
        • P(c);CHECK,OGATE::P(A),XP(c)
        • P(f);OGATE,XP(G)::QAR1(C),XP(f)
        • B(a);N_GUARD::QAB(C),XB(a)
      • Refutation
        • B(b);
    • Try
      • P(D);XP(c)
      • Threat
        • QAR1(C)
      • Vars
        • B(a);CHECK,N_GUARD::QAB1(C),XB(a)
        • P(f);OGATE,XP(D)::QAR1(C),XP(f)
        • P(f);OGATE,XP(G)::QAR1(C),XP(f)
      • Refutation
        • B(b);
    • Try
      • P(G);XP(f)
      • Threat
        • QAR1(C)
      • Vars
        • B(a);CHECK,N_GUARD::QAB1(C),XB(a)
        • P(c);CHECK,OGATE::P(A),XP(c)
        • P(j);XP(I)::S(L),XP(j)
        • P(g);::QAR1(C),XP(g)
      • Refutation
        • B(b);XP(E)
    • Try
      • P(I);XP(j)
      • Threat
        • S(L)
      • Vars
        • B(a);CHECK,N_GUARD::QAB1(C),XB(a)
        • P(c);CHECK,OGATE::P(A),XP(c)
        • P(l);XP(J)::S(K),XP(l)
        • P(l);::S(L),XP(l)
      • Refutation
        • P(l);XP(I)
    • Try
      • P(J);XP(l)
      • Threat
        • S(K)
      • Vars
        • B(a);CHECK,N_GUARD::QAB1(C),XB(a)
        • P(c);CHECK,OGATE::P(A),XP(c)
        • P(i);XB(H)::S(K),XP(i)
      • Refutation
        • P(i);
  • Actual
    • B(H);XP(i)
    • Threat
      • S(K)
    • Vars
      • B(a);CHECK,N_GUARD::QAB1(C),XB(a)
      • P(c);CHECK,OGATE::P(A),XP(c)
      • P(c);OGATE,XP(D)::QAR1(C),XP(c)
      • P(k);N_GUARD,XB(H)::S(L)
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