MESON Chess Problem Database

Problem Display
PID: 140247 (1BRK4/1P2R1p1/B3P2b/2pkp1P1/1P6/1n4p1/1pN2Nb1/1Q3n2 w - - 0 1)

Mladenovic, Miodrag

Belgrade Solving Ty., 2011

1BRK4/1P2R1p1/B3P2b/2pkp1P1/1P6/1n4p1/1pN2Nb1/1Q3n2

#2

12 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Sa1
      • 2.Rxc5#
    • 1...Sc1
      • 2.Rxc5#
    • 1...Sd2
      • 2.Rxc5#
    • 1...Sd4
      • 2.Rxc5#
    • 1...Sa5
      • 2.Rxc5#
    • 1...cxb4
      • 2.Bc4#
    • 1...c4
      • 2.Bxc4#
  • Tries
    • 1.Se3+?
      • 1...Kd4
        • 2.Qd3#
      • 1...Sxe3!
    • 1.Sd4?
      • threat
        • 2.Rd7#
      • 1...Kxd4
        • 2.Qd3#
      • 1...Sxd4
        • 2.Rxc5#
      • 1...cxd4
        • 2.Bc4#
      • 1...exd4
        • 2.Qf5#
      • 1...Bxg5!
    • 1.Qa2?
      • threat
        • 2.Rxc5#
      • 1...cxb4
        • 2.Bc4#
        • 2.Qxb3#
      • 1...c4
        • 2.Bxc4#
      • 1...gxf2!
    • 1.Qd1+?
      • 1...Sbd2
        • 2.Rxc5#
      • 1...Sd4
        • 2.Rxc5#
      • 1...Sfd2!
    • 1.Qxf1?
      • threat
        • 2.Bc4#
        • 2.Qc4#
      • 1...gxf2
        • 2.Qc4#
      • 1...Sd2
        • 2.Rxc5#
        • 2.Qd3#
      • 1...Sa5
        • 2.Rxc5#
        • 2.Qd3#
        • 2.Qd1#
      • 1...c4
        • 2.Bxc4#
        • 2.Qxc4#
      • 1...Bxf1!
  • Keys
    • 1.Qxb2!
      • threat
        • 2.Qxe5#
      • 1...Sd4
        • 2.Rxc5#
      • 1...e4
        • 2.Qe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 6
  • Sets
    • S(d);N_GUARD::R1(K),XP(f)
    • P(f);XP(D)::B(F)
    • P(f);::B(F),XP(f)
  • Tries
    • Try
      • S(B);CHECK
      • Vars
        • K(g);P-FLIGHT::QAR1(A)
      • Refutation
        • S(a);XS(B)
    • Try
      • S(B);
      • Threat
        • R(I)
      • Vars
        • K(g);OGATEB,P-FLIGHT,XS(B)::QAR1(A)
        • S(d);N_GUARD,SBLOCK,XS(B)::R1(K),XP(f)
        • P(f);SBLOCK,XS(B)::B(F)
        • P(h);OGATEB,SBLOCK,XS(B)::QAR2(A)
      • Refutation
        • B(i);P_PINR(I),XP(E)
    • Try
      • Q(A);P_PINS(d)
      • Threat
        • R1(K),XP(f)
      • Vars
        • P(f);N_SPINS(d)::B(F),XP(f)
      • Refutation
        • P(e);XS(C)
    • Try
      • Q(A);CHECK
      • Vars
        • S(d);P_SPINS(d)::R1(K),XP(f)
      • Refutation
        • S(a);P_SPINS(a)
    • Try
      • Q(A);XS(a)
      • Threat
        • DUALS(2)
      • Vars
        • P(e);XS(C)::QAB1(A)
      • Refutation
        • B(c);XQ(A)
  • Actual
    • Q(A);XP(b)
    • Threat
      • QAR1(A),XP(h)
    • Vars
      • S(d);N_GUARD::R1(K),XP(f)
      • P(h);::QAR1(A)
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