MESON Chess Problem Database

Problem Display
PID: 108216 (3b1n2/8/1B1pBRpq/1r4Q1/1p1Pk1Pp/2p1NN1r/2PRP2P/1bn1K3 w - - 0 1)

Bourd, Evgeny

Phenix, 2004

3b1n2/8/1B1pBRpq/1r4Q1/1p1Pk1Pp/2p1NN1r/2PRP2P/1bn1K3

#2

13 + 13

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qg7
      • 2.Qf4#
    • 1...Qh5
      • 2.Qf4#
    • 1...Qh7
      • 2.Qf4#
    • 1...Qh8
      • 2.Qf4#
    • 1...Rxf3
      • 2.exf3#
    • 1...Rd5
      • 2.Bxd5#
    • 1...Rxb6
      • 2.Bd5#
    • 1...Sd3+
      • 2.exd3#
    • 1...cxd2+
      • 2.Sxd2#
    • 1...d5
      • 2.Qe5#
  • Keys
    • 1.Sd5!
      • threat
        • 2.Rf4#
      • 1...Sd3+
        • 2.exd3#
      • 1...cxd2+
        • 2.Sxd2#
      • 1...Qxg5
        • 2.Sxg5#
      • 1...Rxf3
        • 2.exf3#
      • 1...Rxd5
        • 2.Bxd5#
      • 1...Bxf6
        • 2.Sxf6#
      • 1...Sxe2
        • 2.Rxe2#
      • 1...Sxe6
        • 2.Rxe6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 6
  • Sets
    • Q(k);N_GUARD::QAR1(J)
    • R(d);OGATE,XS(G)::P(D),XR(d)
    • R(h);N_GUARD::B(L),XR(h)
    • R(h);N_GUARD,XB(K)::B(L)
    • S(b);CHECK,OGATE::P(D),XS(b)
    • P(c);CHECK,XR(C)::S(G),XP(c)
    • P(i);N_GUARD,S_CUTR(h)::QAR1(J)
  • Actual
    • S(F);
    • Threat
      • R1(M)
    • Vars
      • S(b);CHECK,OGATE::P(D),XS(b)
      • P(c);CHECK,XR(C)::S(G),XP(c)
      • Q(k);XQ(J)::S(G),XQ(k)
      • R(d);OGATE,XS(G)::P(D),XR(d)
      • R(h);OGATE,XS(F)::B(L),XR(h)
      • B(l);XR(M)::S(F),XB(l)
      • S(b);OGATE,XP(D)::R(C),XS(b)
      • S(m);OGATE,XB(L)::R(M),XS(m)
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Developed and maintained by Brian Stephenson.
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