MESON Chess Problem Database

Problem Display
PID: 47534 (8/1bN2N2/qp4R1/pPk3K1/3R2p1/1n1p2r1/1Q6/2r5 w - - 0 1)

Robert, Philippe

Comm., Die Schwalbe, 2003

8/1bN2N2/qp4R1/pPk3K1/3R2p1/1n1p2r1/1Q6/2r5

#2

7 + 10

23 Die Schwalbe 2006

SOLUTION

  • SOUND
  • Sets
    • 1...Ra1
      • 2.Qc3#
    • 1...Rb1
      • 2.Qc3#
    • 1...Rd1
      • 2.Qc3#
    • 1...Re1
      • 2.Qc3#
    • 1...Rf1
      • 2.Qc3#
    • 1...Rcg1
      • 2.Qc3#
    • 1...Rh1
      • 2.Qc3#
    • 1...Rc3
      • 2.Qxc3#
    • 1...Bc6
      • 2.Rxc6#
    • 1...Bc8
      • 2.Rc6#
    • 1...Sa1
      • 2.Se6#
    • 1...Sd2
      • 2.Se6#
  • Tries
    • 1.Sd6?
      • threat
        • 2.Se6#
      • 1...Qxb5
        • 2.Sxb7#
      • 1...Sxd4
        • 2.Qa3#
      • 1...Rc4
        • 2.Rxc4#
      • 1...Re1
        • 2.Rc4#
        • 2.Qc3#
      • 1...Bd5
        • 2.Sxa6#
      • 1...Bc8
        • 2.Se4#
      • 1...Re3!
    • 1.Rgd6?
      • threat
        • 2.Qa3#
      • 1...Qxb5
        • 2.Se6#
      • 1...Sxd4
        • 2.Qxd4#
      • 1...Ra1
        • 2.Qc3#
      • 1...Bd5
        • 2.R6xd5#
      • 1...Rc4!
  • Keys
    • 1.Se5!
      • threat
        • 2.Sd7#
      • 1...Qxb5
        • 2.Se6#
      • 1...Sxd4
        • 2.Qa3#
      • 1...Rc3
        • 2.Qxc3#
      • 1...Rc4
        • 2.Rxc4#
      • 1...Bc6
        • 2.Rxc6#
      • 1...Bc8
        • 2.Rc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 9
  • Sets
    • R(a);N_GUARD::QAR2(A)
    • R(a);N_GUARD::QAR2(A),XR(a)
    • B(j);N_GUARD::R1(E),XB(j)
    • B(j);N_GUARD::R1(E)
    • S(b);::S(F)
  • Tries
    • Try
      • S(G);
      • Threat
        • S(F)
      • Vars
        • Q(h);N_GUARD,XP(C)::S(G),XB(j)
        • S(b);SBLOCK,XR(B)::QAB(A)
        • R(a);N_GUARD::R1(B),XR(a)
        • B(j);N_GUARD::S(F),XQ(h)
        • B(j);N_GUARD::S(G)
      • Refutation
        • R(d);
    • Try
      • R(E);
      • Threat
        • QAB(A)
      • Vars
        • Q(h);SBLOCK,XP(C)::S(F)
        • S(b);OGATE,XR(B)::QAB1(A),XS(b)
        • R(a);N_GUARD::QAR2(A)
        • B(j);N_GUARD::R1(E),XB(j)
      • Refutation
        • R(a);
  • Actual
    • S(G);
    • Threat
      • S(G)
    • Vars
      • Q(h);SBLOCK,XP(C)::S(F)
      • S(b);SBLOCK,XR(B)::QAB(A)
      • R(a);N_GUARD::QAR2(A),XR(a)
      • R(a);N_GUARD::R1(B),XR(a)
      • B(j);N_GUARD::R1(E),XB(j)
      • B(j);N_GUARD::R1(E)
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