MESON Chess Problem Database

Problem Display
PID: 80623 (1b6/3K2P1/3n4/NpPk1p2/QP1rR1B1/2Bpn2N/P3R1P1/6q1 w - - 0 1)

Radomirovic, Miodrag

3rd Comm., Mat Plus, 1997

1b6/3K2P1/3n4/NpPk1p2/QP1rR1B1/2Bpn2N/P3R1P1/6q1

#2

13 + 9

5929 Mat Plus Special Issue 2006
15522 Atelier 64 (Maslar) 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Rxb4
      • 2.Re5#
    • 1...Rc4
      • 2.Re5#
    • 1...Sd1
      • 2.Sf4#
      • 2.Re5#
    • 1...Sf1
      • 2.Sf4#
      • 2.Re5#
    • 1...Sc2
      • 2.Sf4#
      • 2.Re5#
    • 1...Sxg2
      • 2.Re5#
    • 1...Sec4
      • 2.Sf4#
    • 1...Sxg4
      • 2.Sf4#
  • Tries
    • 1.Qb3+?
      • 1...Kxe4
        • 2.Qe6#
      • 1...Rc4
        • 2.Re5#
      • 1...Sec4
        • 2.Sf4#
        • 2.Re5#
      • 1...Sdc4!
    • 1.g8Q+?
      • 1...Kxe4
        • 2.Qe6#
      • 1...Sf7!
  • Keys
    • 1.Sc4!
      • threat
        • 2.Rxd4#
      • 1...Kxc4
        • 2.Qb3#
      • 1...Kxe4
        • 2.Bf3#
      • 1...Rxc4
        • 2.Re5#
      • 1...Rxe4
        • 2.Sb6#
      • 1...Sxg2
        • 2.Sb6#
      • 1...Sexc4
        • 2.Sf4#
      • 1...Sxg4
        • 2.Sb6#
      • 1...Sdxc4
        • 2.Qa8#
      • 1...Sxe4
        • 2.g8Q#
        • 2.g8B#
      • 1...bxc4
        • 2.Qc6#
      • 1...fxe4
        • 2.Be6#
      • 1...Sd1
        • 2.Sb6#
      • 1...Sf1
        • 2.Sb6#
      • 1...Sc2
        • 2.Sb6#

This is after 104293

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 9
    • REMOVED MATES = 1
  • Sets
    • R(d);XP(G)::R1(H)
    • R(d);::R1(H)
    • S(c);XP(C)::R1(H)
    • S(c);::S(E)
    • S(c);XB(I)::S(E)
  • Tries
    • Try
      • Q(F);CHECK
      • Vars
        • K(f);OGATE,P_SPINS(c),S_FLIGHT,XR(H)::QAR2(F)
        • R(d);P_SPINR(d)::R1(H)
      • Refutation
        • S(h);P_SPINS(h)
    • Try
      • P(M);CHECK
      • Vars
        • K(f);P_SPINS(c),S_FLIGHT,XR(H)::QAR2(M)
      • Refutation
        • S(h);P_SPINS(h)
  • Actual
    • S(J);
    • Threat
      • R1(H),XR(d)
    • Vars
      • K(f);OGATEB,P_SPINR(d),S_FLIGHT,XS(J)::QAB1(F)
      • K(f);OGATEB,P_SPINS(c),S_FLIGHT,XR(H)::B(I)
      • R(d);SBLOCK,XS(J)::R1(H)
      • R(d);SBLOCK,XR(H)::S(J)
      • S(c);XP(C)::S(J)
      • S(c);SBLOCK,XS(J)::S(E)
      • S(c);XB(I)::S(J)
      • S(h);N_GUARD,SBLOCK,XS(J)::QAB(F)
      • S(h);N_GUARD,SBLOCK,XR(H)::P=Q
      • P(e);OGATE,SBLOCK,XS(J)::QAB1(F)
      • P(g);OGATE,SBLOCK,XR(H)::B(I)
      • S(c);::S(J)
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