MESON Chess Problem Database

Problem Display
PID: 104402 (b2K4/3Q1p2/4R1p1/4N3/2P1k1P1/1nr4n/4NP2/8 w - - 0 1)

Mladenovic, Miodrag

University YU Champ., 1981

b2K4/3Q1p2/4R1p1/4N3/2P1k1P1/1nr4n/4NP2/8

#2

8 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rc1
      • 2.Qd3#
    • 1...Rc2
      • 2.Qd3#
    • 1...Rd3
      • 2.Qxd3#
    • 1...Rf3
      • 2.Sxf7#
    • 1...Rxc4
      • 2.Qd3#
    • 1...Bd5
      • 2.Qxd5#
    • 1...Bc6
      • 2.Qxc6#
    • 1...Bb7
      • 2.Qxb7#
    • 1...Sa1
      • 2.Qd4#
    • 1...Sc1
      • 2.Qd4#
    • 1...Sd2
      • 2.Qd4#
    • 1...Sd4
      • 2.Qxd4#
    • 1...Sa5
      • 2.Qd4#
    • 1...Sc5
      • 2.Qd4#
    • 1...Sf4
      • 2.Sxc3#
  • Tries
    • 1.f3+?
      • 1...Rxf3
        • 2.Sxf7#
      • 1...Ke3!
  • Keys
    • 1.Qxf7!
      • threat
        • 2.Qxg6#
      • 1...Rd3+
        • 2.Sd7#
      • 1...Rxc4
        • 2.Qf3#
      • 1...Sxf2
        • 2.Qf4#
      • 1...Rf3
        • 2.Qxf3#
      • 1...Sd4
        • 2.Sxc3#
      • 1...Sf4
        • 2.Qxf4#
      • 1...g5
        • 2.Qg6#
        • 2.Qf5#
        • 2.Qh7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 5
    • ADDED MATES = 1
    • REMOVED MATES = 10
  • Sets
    • R(b);N_GUARD::QAB1(G)
    • R(b);N_GUARD,P_PINQ(G)::QAB1(G),XR(b)
    • R(b);SBLOCK::R(F)+S(E),XP(f)
    • R(b);N_GUARD,XP(C)::QAB1(G)
    • B(g);N_GUARD::QAB1(G),XB(g)
    • B(g);N_GUARD::QAB(G),XB(g)
    • S(a);N_GUARD::QAR1(G)
    • S(a);N_GUARD::QAR1(G),XS(a)
    • S(c);SBLOCK::S(A),XR(b)
  • Tries
    • Try
      • P(B);CHECK
      • Vars
        • R(b);SBLOCK,XP(B)::R(F)+S(E),XP(f)
      • Refutation
        • K(d);P-FLIGHT
  • Actual
    • Q(G);XP(f)
    • Threat
      • QAB(G),XP(e)
    • Vars
      • R(b);CHECK,SBLOCK::R(F)+S(E)
      • R(b);N_GUARD,XP(C)::QAB1(G)
      • S(c);N_GUARD,XP(B)::QAR1(G)
      • R(b);N_GUARD::QAB1(G),XR(b)
      • S(a);SBLOCK::S(A),XR(b)
      • S(c);N_GUARD::QAR1(G),XS(c)
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