MESON Chess Problem Database

Problem Display
PID: 225372 (3q1bK1/2B1prpN/2Ppk1N1/1p3p2/2n5/1B3P2/3RP1Q1/3Rr3 w - - 0 1)

Banny, Dimitry Nikolaevich

1st Comm., Praca, 1997

3q1bK1/2B1prpN/2Ppk1N1/1p3p2/2n5/1B3P2/3RP1Q1/3Rr3

#2

11 + 11

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Rxe2
      • 2.Rxe2#
      • 2.Qxe2#
    • 1...Rf6
      • 2.Sg5#
    • 1...d5
      • 2.Sf4#
  • Tries
    • 1.Bxc4+?
      • 1...d5
        • 2.Sf4#
      • 1...bxc4!
    • 1.Qf2?
      • threat
        • 2.Qe3#
      • 1...Rxe2
        • 2.Rxe2#
        • 2.Qxe2#
      • 1...d5
        • 2.Sf4#
      • 1...f4!
  • Keys
    • 1.Qg5!
      • threat
        • 2.Qe3#
      • 1...Rxe2
        • 2.Rxe2#
      • 1...f4
        • 2.Qd5#
      • 1...d5
        • 2.Sf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • R(h);SBLOCK::S(J)
    • P(e);N_SPINS(b)::S(H)
  • Tries
    • Try
      • B(E);CHECK,XS(b)
      • Vars
        • P(e);P_SPINP(e)::S(H)
      • Refutation
        • P(c);XB(E)
    • Try
      • Q(D);
      • Threat
        • QAR(D)
      • Vars
        • P(e);N_SPINS(b)::S(H)
      • Refutation
        • P(d);
  • Actual
    • Q(D);
    • Threat
      • QAR(D)
    • Vars
      • R(a);OGATE,XP(C)::R(B),XR(a)
      • P(d);OGATE::QAB1(D)
      • P(e);N_SPINS(b)::S(H)
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