MESON Chess Problem Database

Problem Display
PID: 708 (4n1B1/R1Rp4/p2k2N1/NPnp2p1/pKQ2rb1/1p1p1q2/7B/6b1 w - - 0 1)

Ancin, Andrej

3rd HM., British Chess Magazine, 1939

4n1B1/R1Rp4/p2k2N1/NPnp2p1/pKQ2rb1/1p1p1q2/7B/6b1

#2

9 + 14

14649 Andrej Ancin - Chess Compositions 2008

SOLUTION

  • SOUND
  • Sets
    • 1...Se4
      • 2.Sb7#
      • 2.Qxd5#
    • 1...Se6
      • 2.Sb7#
      • 2.Rxd7#
    • 1...Sb7
      • 2.Sxb7#
    • 1...dxc4
      • 2.Sxc4#
    • 1...d4
      • 2.Qxc5#
  • Tries
    • 1.Rxd7+?
      • 1...Sxd7
        • 2.Sb7#
      • 1...Bxd7!
  • Keys
    • 1.Rcb7!
      • threat
        • 2.Rb6#
      • 1...Sxb7
        • 2.Sxb7#
      • 1...dxc4
        • 2.Sxc4#
      • 1...Se4
        • 2.Qxd5#
      • 1...Se6
        • 2.Rxd7#
      • 1...d4
        • 2.Qxc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • S(h);N_GUARD::S(D),XS(h)
    • P(i);XQ(C)::S(D),XP(i)
    • P(i);N_PINQ(C)::QAB1(C),XS(h)
  • Tries
    • Try
      • R(H);CHECK,XP(m)
      • Vars
        • S(h);SBLOCK,XR(H)::S(D)
      • Refutation
        • B(g);XR(H)
  • Actual
    • R(H);
    • Threat
      • R(H)
    • Vars
      • S(h);XR(H)::S(D),XS(h)
      • P(i);XQ(C)::S(D),XP(i)
      • S(h);N_PINQ(C)::QAR1(C),XP(i)
      • S(h);N_GUARD,S_CUTB(g)::R1(H),XP(m)
      • P(i);N_PINQ(C)::QAB1(C),XS(h)
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