MESON Chess Problem Database

Problem Display
PID: 80785 (NR3N1n/PB2Rrp1/1p1kPprb/1KpP1Pp1/6P1/8/Q6P/B7 w - c5 0 1)

Stojnic, Dragan

2nd Prize, Mat Plus, 1998-1999

NR3N1n/PB2Rrp1/1p1kPprb/1KpP1Pp1/6P1/8/Q6P/B7

#2

14 + 10

5929 Mat Plus Special Issue 2006

SOLUTION

  • SOUND
  • Sets
    • 1...Rxf8
      • 2.Rd7#
    • 1...c4
      • 2.Qa3#
  • Tries
    • 1.Rc7?
      • 1...Rxf8
        • 2.Rd7#
      • 1...Rd7
        • 2.Rxd7#
      • 1...Re7
        • 2.Rc6#
      • 1...c4
        • 2.Qa3#
      • 1...Rxc7!
    • 1.Rc8?
      • 1...Rxe7
        • 2.Rc6#
      • 1...Rxf8
        • 2.Rd7#
      • 1...c4
        • 2.Qa3#
      • 1...Kxe7!
    • 1.Rbe8?
      • 1...Rxf8
        • 2.Rd7#
      • 1...c4
        • 2.Qa3#
      • 1...Rxe7!
    • 1.Qb3?
      • 1...Rxe7
        • 2.Qg3#
      • 1...Rxf8
        • 2.Rd7#
      • 1...c4
        • 2.Qa3#
        • 2.Qb4#
      • 1...Kxe7!
    • 1.Qd2?
      • 1...Kxe7
        • 2.d6#
      • 1...Rxf8
        • 2.Rd7#
      • 1...c4
        • 2.Qb4#
      • 1...Rxe7!
    • 1.Qa3?
      • 1...Rxe7
        • 2.Qg3#
      • 1...Rxf8
        • 2.Rd7#
      • 1...Kxe7!
    • 1.Qa6?
      • 1...Rxe7
        • 2.Qxb6#
      • 1...Rxf8
        • 2.Rd7#
      • 1...c4
        • 2.Qa3#
      • 1...Kxe7!
    • 1.h3?
      • 1...Rxe7
        • 2.Qh2#
      • 1...Rxf8
        • 2.Rd7#
      • 1...c4
        • 2.Qa3#
      • 1...Kxe7!
  • Keys
    • 1.dxc5 ep!
      • 1...Kxe7
        • 2.Qa3#
      • 1...Rxe7
        • 2.Qd2#
      • 1...Rxf8
        • 2.Rd7#

There are these versions: 134451

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • R(h);N_GUARD,XS(N)::R1(K)
    • P(a);OGATEB::QAB(B)
  • Tries
    • Try
      • R(K);
      • Vars
        • R(h);N_GUARD,XS(N)::R1(K)
        • R(h);N_GUARD::R1(K),XR(h)
        • R(h);SBLOCK::R1(K)
        • P(a);OGATEB::QAB(B)
      • Refutation
        • R(h);XR(K)
    • Try
      • R(M);
      • Vars
        • R(h);SBLOCK,XR(K)::R1(M)
        • R(h);N_GUARD,XS(N)::R1(K)
        • P(a);OGATEB::QAB(B)
      • Refutation
        • K(d);S_FLIGHT,XR(K)
    • Try
      • R(M);
      • Vars
        • R(h);N_GUARD,XS(N)::R1(K)
        • P(a);OGATEB::QAB(B)
      • Refutation
        • R(h);XR(K)
    • Try
      • Q(B);
      • Vars
        • R(h);SBLOCK,XR(K)::QAB(B)
        • R(h);N_GUARD,XS(N)::R1(K)
      • Refutation
        • K(d);S_FLIGHT,XR(K)
    • Try
      • Q(B);
      • Vars
        • K(d);OGATE,S_FLIGHT,XR(K)::P(F)
        • R(h);N_GUARD,XS(N)::R1(K)
        • P(a);OGATEB::QAB(B)
      • Refutation
        • R(h);XR(K)
    • Try
      • Q(B);P_PINP(a)
      • Vars
        • R(h);SBLOCK,XR(K)::QAB(B)
        • R(h);N_GUARD,XS(N)::R1(K)
      • Refutation
        • K(d);S_FLIGHT,XR(K)
    • Try
      • Q(B);P_PINP(c)
      • Vars
        • R(h);SBLOCK,XR(K)::QAR2(B),XP(c)
        • R(h);N_GUARD,XS(N)::R1(K)
        • P(a);OGATEB::QAB(B)
      • Refutation
        • K(d);N_SPINP(c),S_FLIGHT,XR(K)
    • Try
      • P(C);
      • Vars
        • R(h);SBLOCK,XR(K)::QAB(B)
        • R(h);N_GUARD,XS(N)::R1(K)
        • P(a);OGATEB::QAB(B)
      • Refutation
        • K(d);S_FLIGHT,XR(K)
  • Actual
    • P(F);EP,XP(a)
    • Vars
      • K(d);S_FLIGHT,XR(K)::QAB(B)
      • R(h);SBLOCK,XR(K)::QAR(B)
      • R(h);N_GUARD,XS(N)::R1(K)
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