MESON Chess Problem Database

Problem Display
PID: 95017 (2bN1R2/1R1p3p/3PP3/3rkp2/1Q6/B1PP3N/BK2n2b/8 w - - 0 1)

Mlynka, Karol

Pravda, 2003

2bN1R2/1R1p3p/3PP3/3rkp2/1Q6/B1PP3N/BK2n2b/8

#2

12 + 8

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Ra5
      • 2.Qxa5#
    • 1...Rb5
      • 2.Rxb5#
      • 2.Qxb5#
    • 1...Rc5
      • 2.Qxc5#
    • 1...Rxd6
      • 2.Qxd6#
    • 1...Sg3
      • 2.Qf4#
    • 1...f4
      • 2.Qe4#
    • 1...dxe6
      • 2.Sc6#
  • Tries
    • 1.Sc6+?
      • 1...Kxe6
        • 2.Sg5#
      • 1...dxc6!
    • 1.Rb5?
      • threat
        • 2.Rxd5#
      • 1...Rxb5
        • 2.Qxb5#
      • 1...Sxc3
        • 2.Qxc3#
      • 1...dxe6
        • 2.Sc6#
      • 1...Rc5
        • 2.Qxc5#
      • 1...Sf4
        • 2.Qd4#
      • 1...Bb7!
  • Keys
    • 1.Qh4!
      • threat
        • 2.Qf6#
      • 1...Rb5+
        • 2.Rxb5#
      • 1...Rxd3
        • 2.Sf7#
      • 1...Rc5
        • 2.Sf7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 5
  • Sets
    • R(c);OGATEB::QAR(G),XR(c)
    • R(c);OGATEB::QAR2(G),XR(c)
    • R(c);OGATE,XP(H)::QAB1(G),XR(c)
    • S(a);N_GUARD,S_CUTB(b)::QAB1(G)
    • P(e);N_GUARD::QAR1(G)
    • P(f);N_GUARD,SBLOCK,XP(I)::S(K)
  • Tries
    • Try
      • S(K);CHECK
      • Vars
        • K(d);P-FLIGHT,P_SPINR(c),XP(I)::S(F)
      • Refutation
        • P(f);XS(K)
    • Try
      • R(J);P_PINR(c)
      • Threat
        • R1(J),XR(c)
      • Vars
        • R(c);N_SPINR(c),OGATE,P_PINQ(G),XR(J)::QAR(G),XR(c)
        • S(a);OGATE,XP(D)::QAB(G),XS(a)
        • P(f);N_GUARD,SBLOCK,XP(I)::S(K)
        • R(c);OGATEB::QAR2(G),XR(c)
        • S(a);N_GUARD::QAB1(G)
      • Refutation
        • B(h);
  • Actual
    • Q(G);
    • Threat
      • QAB1(G)
    • Vars
      • R(c);CHECK,OGATEB::R(J),XR(c)
      • R(c);XP(E)::S(K)
      • R(c);::S(K)
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