MESON Chess Problem Database

Problem Display
PID: 102809 (4r3/p7/2p2b2/3pPK2/pQpk1PR1/5Rp1/2pNPP2/2q1nn1b w - - 0 1)

Schatz, Max

Die Schwalbe, 2008

4r3/p7/2p2b2/3pPK2/pQpk1PR1/5Rp1/2pNPP2/2q1nn1b

#2

9 + 14

SOLUTION

  • SOUND
  • Sets
    • 1...Rxe5+
      • 2.fxe5#
    • 1...Bxe5
      • 2.fxe5#
    • 1...Bg5
      • 2.fxg5#
    • 1...Sg2
      • 2.Rd3#
    • 1...Sd3
      • 2.Rxd3#
    • 1...Se3+
      • 2.fxe3#
    • 1...a3
      • 2.Sb3#
    • 1...c5
      • 2.Qc3#
  • Keys
    • 1.Sxc4!
      • threat
        • 2.Sb2#
        • 2.Sd2#
        • 2.Sa3#
        • 2.Se3#
        • 2.Sa5#
        • 2.Sb6#
        • 2.Sd6#
      • 1...Qxf4+
        • 2.Rgxf4#
      • 1...Rxe5+
        • 2.Sxe5#
      • 1...Se3+
        • 2.Sxe3#
      • 1...dxc4
        • 2.Qd6#
      • 1...Qb2
        • 2.Sxb2#
      • 1...Qd2
        • 2.Sxd2#
      • 1...Qa3
        • 2.Sxa3#
      • 1...Qe3
        • 2.Sb2#
        • 2.Sd2#
        • 2.Sa3#
        • 2.Sxe3#
        • 2.Sa5#
        • 2.Sb6#
        • 2.Sd6#
      • 1...Qb1
        • 2.Sb2#
      • 1...Rb8
        • 2.Sb6#
      • 1...Be7
        • 2.Sd6#
      • 1...Sd3
        • 2.Rxd3#
      • 1...Sd2
        • 2.Sxd2#
      • 1...a3
        • 2.Sb2#
        • 2.Sd2#
        • 2.Sxa3#
        • 2.Se3#
        • 2.Sa5#
        • 2.Sb6#
        • 2.Sd6#
      • 1...c5
        • 2.Qc3#
      • 1...a5
        • 2.Sxa5#

There are these versions: 134827

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 10
    • REMOVED MATES = 4
  • Sets
    • R(n);CHECK,OGATE,XP(H)::R(G)+P(F),XR(n)
    • B(l);OGATE,XP(H)::R(G)+P(F),XB(l)
    • B(l);OGATE::R(G)+P(F),XB(l)
    • S(b);N_GUARD::R1(D)
    • S(b);N_GUARD::R1(D),XS(b)
    • S(c);CHECK,OGATE::P(C),XS(c)
    • P(g);N_GUARD::S(A)
    • P(k);SBLOCK::QAB1(E)
  • Actual
    • S(A);XP(h)
    • Threat
      • DUALS(7)
    • Vars
      • Q(a);CHECK,OGATE,P_SPINQ(a),XP(F)::R(G),XQ(a)
      • R(n);CHECK,XP(H)::QAR(E)+S(A),XR(n)
      • S(c);CHECK::QAR(E)+S(A),XS(c)
      • P(j);OGATEB,P_SPINP(j),SBLOCK,XS(A)::QAR2(E)
      • Q(a);::QAR(E)+S(A),XQ(a)
      • Q(a);::QAR(E)+S(A)
      • R(n);::QAR(E)+S(A)
      • B(l);::QAR(E)+S(A)
      • S(b);N_GUARD::R1(D),XS(b)
      • S(c);::QAR(E)+S(A),XS(c)
      • P(k);SBLOCK::QAB1(E)
      • P(m);::QAR(E)+S(A),XP(m)
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