MESON Chess Problem Database

Problem Display
PID: 189941 (2KNR3/P2R3N/2p1p2n/r2pk3/qPPn2b1/BpPB2P1/2p1p2Q/5r2 w - - 0 1)

Bolus, Andrew

Pittsburgh Gazette-Times, 1912

2KNR3/P2R3N/2p1p2n/r2pk3/qPPn2b1/BpPB2P1/2p1p2Q/5r2

#2

13 + 13

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Rf4
      • 2.gxf4#
    • 1...Bf3
      • 2.g4#
    • 1...Sf3
      • 2.Qxe2#
    • 1...Sb5
      • 2.Sxc6#
    • 1...Sdf5
      • 2.Rxe6#
    • 1...Shf5
      • 2.Sf7#
    • 1...dxc4
      • 2.cxd4#
    • 1...c5
      • 2.Rxd5#
  • Tries
    • 1.Qf2?
      • threat
        • 2.Qe3#
        • 2.Qxd4#
        • 2.cxd4#
      • 1...c1Q
        • 2.Qxd4#
        • 2.cxd4#
      • 1...c1B
        • 2.Qxd4#
        • 2.cxd4#
      • 1...e1Q
        • 2.Qxd4#
        • 2.cxd4#
      • 1...e1R
        • 2.Qxd4#
        • 2.cxd4#
      • 1...Bf3
        • 2.Qxd4#
        • 2.cxd4#
      • 1...Bf5
        • 2.Qxd4#
        • 2.cxd4#
      • 1...Sf3
        • 2.Qe3#
        • 2.Qxe2#
      • 1...Sb5
        • 2.Sxc6#
        • 2.Qe3#
      • 1...Sdf5
        • 2.Rxe6#
      • 1...Shf5
        • 2.Sf7#
      • 1...c5
        • 2.Rxd5#
        • 2.Qe3#
      • 1...Rxf2!
  • Keys
    • 1.Bb2!
      • threat
        • 2.cxd4#
      • 1...Rf4
        • 2.gxf4#
      • 1...Sf3
        • 2.Qxe2#
      • 1...Sb5
        • 2.Sxc6#
      • 1...Sdf5
        • 2.Rxe6#
      • 1...Shf5
        • 2.Sf7#
      • 1...c5
        • 2.Rxd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 2
  • Sets
    • R(a);OGATE::P(E),XR(a)
    • B(g);OGATE::QAB(A)+P(E)
    • S(f);N_GUARD,S_CUTB(g)::QAR(A),XP(c)
    • S(f);N_GUARD,S_CUTQ(e)::S(L),XP(k)
    • S(f);N_GUARD,S_CUTB(g)::R1(M),XP(l)
    • S(m);N_GUARD,S_CUTR(a)::S(L)
    • P(i);XP(G)::P(C),XS(f)
    • P(k);N_GUARD,S_CUTR(h)::R1(I),XP(i)
  • Tries
    • Try
      • Q(A);
      • Threat
        • DUALS(3)
      • Vars
        • S(f);N_GUARD,S_CUTB(g)::R1(M),XP(l)
        • S(m);N_GUARD::S(L)
      • Refutation
        • R(a);XQ(A)
  • Actual
    • B(B);
    • Threat
      • P(C),XS(f)
    • Vars
      • R(a);OGATE::P(E),XR(a)
      • S(f);N_GUARD,S_CUTB(g)::QAR(A),XP(c)
      • S(f);N_GUARD,S_CUTQ(e)::S(L),XP(k)
      • S(f);N_GUARD,S_CUTB(g)::R1(M),XP(l)
      • S(m);N_GUARD,S_CUTR(a)::S(L)
      • P(k);N_GUARD,S_CUTR(h)::R1(I),XP(i)
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