MESON Chess Problem Database

Problem Display
PID: 40980 (8/5Q1p/Kp1b4/1N5N/2n1k3/1R2p2R/3pr1r1/7B w - - 0 1)

Radovic, Srecko

The Problemist, 2002

8/5Q1p/Kp1b4/1N5N/2n1k3/1R2p2R/3pr1r1/7B

#2

7 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Be5
      • 2.Qf3#
    • 1...Se5
      • 2.Sg3#
  • Tries
    • 1.Sc3+?
      • 1...Kd4
        • 2.Qd5#
      • 1...Ke5
        • 2.Qd5#
        • 2.Qf6#
      • 1...Kd3!
    • 1.Sg3+?
      • 1...Ke5
        • 2.Rh5#
        • 2.Qf5#
      • 1...Bxg3!
    • 1.Bxg2+?
      • 1...Ke5
        • 2.Qd5#
        • 2.Qf6#
      • 1...Rxg2!
    • 1.Rf3?
      • threat
        • 2.Qf5#
      • 1...Ke5
        • 2.Qf5#
      • 1...Rg5
        • 2.Rfxe3#
      • 1...Be5
        • 2.Qb7#
      • 1...Se5
        • 2.Rf4#
      • 1...Bf4!
  • Keys
    • 1.Rd3!
      • threat
        • 2.Qd5#
      • 1...Kxd3
        • 2.Qf5#
      • 1...Ke5
        • 2.Qd5#
      • 1...Be5
        • 2.Qxh7#
      • 1...Se5
        • 2.Rd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • B(h);SBLOCK::QAB1(G)
    • S(e);SBLOCK,S_CUTB(h)::S(E)
  • Tries
    • Try
      • S(D);CHECK
      • Vars
        • K(f);N_SPINR(c),P-FLIGHT::QAR1(G)
      • Refutation
        • K(f);N_SPINR(c),P_SPINP(d),S_FLIGHT
    • Try
      • S(E);CHECK
      • Refutation
        • B(h);XS(E)
    • Try
      • B(A);CHECK,XR(c)
      • Refutation
        • R(b);XB(A)
    • Try
      • R(C);N_PINR(c)
      • Threat
        • QAB1(G)
      • Vars
        • K(f);P-FLIGHT::QAR1(G)
        • R(c);::B(A)+R(C),DCHECK,XP(d)
        • B(h);SBLOCK::QAB(G)
        • S(e);SBLOCK,S_CUTB(h)::R1(C)
      • Refutation
        • B(h);
  • Actual
    • R(B);
    • Threat
      • QAB1(G)
    • Vars
      • K(f);N_SPINR(c),P_SPINP(d),S_FLIGHT,XR(B)::QAB(G)
      • K(f);N_SPINR(c),P-FLIGHT::QAR1(G)
      • B(h);SBLOCK::QAB(G),XP(i)
      • S(e);SBLOCK::R1(B)
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