MESON Chess Problem Database

Problem Display
PID: 274364 (2rR4/4NK2/2p1p3/1PPrpP2/1P1k1p1B/NR1p4/nP3P1q/4Q3 w - - 0 1)

Labai, Zoltan

Svitek, Miroslav

Troll, 2023

(First published on Wed Sep 13 2023)

2rR4/4NK2/2p1p3/1PPrpP2/1P1k1p1B/NR1p4/nP3P1q/4Q3

#2

13 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Qxf2
      • 2.Bxf2#
    • 1...Rd6
      • 2.Rxd6#
    • 1...Rd7
      • 2.Rxd7#
    • 1...Ra8
      • 2.Sxc6#
    • 1...Rb8
      • 2.Sxc6#
    • 1...Rxd8
      • 2.Sxc6#
    • 1...Sc3
      • 2.bxc3#
    • 1...Sxb4
      • 2.Qxb4#
    • 1...f3
      • 2.Qe3#
    • 1...exf5
      • 2.Sxf5#
  • Tries
    • 1.Rc3?
      • threat
        • 2.Rc4#
      • 1...Sxc3
        • 2.bxc3#
      • 1...cxb5
        • 2.Sxb5#
      • 1...d2
        • 2.Sc2#
      • 1...e4!
  • Keys
    • 1.Kxe6!
      • threat
        • 2.Qxe5#
      • 1...Rd6+
        • 2.Rxd6#
      • 1...Rcxd8
        • 2.Sxc6#
      • 1...Sxb4
        • 2.Qxb4#
      • 1...f3
        • 2.Qe3#
      • 1...e4
        • 2.Bf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 6
  • Sets
    • Q(b);OGATE,XP(C)::B(G),XQ(b)
    • R(f);OGATEB::R(M),XR(f)
    • R(f);OGATEB,P_PINS(K)::R(M),XR(f)
    • R(j);N_GUARD::S(K),XP(h)
    • R(j);N_GUARD,N_SPINR(f),XR(M)::S(K),XP(h)
    • S(a);OGATE::P(B),XS(a)
    • S(a);OGATE,XP(F)::QAR2(A),XS(a)
    • P(e);N_GUARD::QAB1(A)
    • P(i);XP(J)::S(K),XP(i)
  • Tries
    • Try
      • R(E);
      • Threat
        • R1(E)
      • Vars
        • S(a);OGATE,XR(E)::P(B),XS(a)
        • P(h);XP(H)::S(D),XP(h)
        • P(c);N_GUARD::S(D)
      • Refutation
        • P(g);
  • Actual
    • K(L);S_FLIGHT,XP(i)
    • Threat
      • QAB1(A),XP(g)
    • Vars
      • R(f);CHECK,OGATEB::R(M),XR(f)
      • R(j);N_GUARD,N_SPINR(f),XR(M)::S(K),XP(h)
      • S(a);OGATE,XP(F)::QAR2(A),XS(a)
      • P(e);N_GUARD::QAB1(A)
      • P(g);OGATEB::B(G)
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