MESON Chess Problem Database

Problem Display
PID: 86570 (8/8/8/6K1/2Q4B/8/2RP4/1n1k4 w - - 0 1)

Melnichenko, Viktor Oleksandrovich

Smena, 1997

8/8/8/6K1/2Q4B/8/2RP4/1n1k4

#2

5 + 2

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Sxd2
      • 2.Rc1#
  • Tries
    • 1.Qd3?
      • 1...Sxd2
        • 2.Qxd2#
      • 1...Sc3
        • 2.dxc3#
      • 1...Sa3!
  • Keys
    • 1.d4!
      • threat
        • 2.Qe2#
      • 1...Sc3
        • 2.Qd3#
      • 1...Sd2
        • 2.Rc1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • S(a);SBLOCK,XP(B)::R1(A)
  • Tries
    • Try
      • Q(C);
      • Vars
        • S(a);OGATE,P_SPINS(a),XP(B)::QAR1(C),XS(a)
        • S(a);OGATE::QAR(C)+P(B),XS(a)
      • Refutation
        • S(a);
  • Actual
    • P(B);
    • Threat
      • QAB1(C)
    • Vars
      • S(a);N_GUARD::QAR2(C)
      • S(a);SBLOCK::R1(A)
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