MESON Chess Problem Database

Problem Display
PID: 268101 (2r5/B3Q3/p1r1pP2/2PN1p1q/3k2p1/NR1pR2n/1P6/K3bb1B w - - 0 1)

Svitek, Miroslav

The Problemist, 2022

2r5/B3Q3/p1r1pP2/2PN1p1q/3k2p1/NR1pR2n/1P6/K3bb1B

#2

11 + 12

SOLUTION

  • SOUND
  • Sets
    • 1...Rd6
      • 2.c6#
    • 1...Bf2
      • 2.Rb4#
    • 1...Bc3
      • 2.bxc3#
    • 1...Bg3
      • 2.Rb4#
    • 1...Bb4
      • 2.Rxb4#
    • 1...Bh4
      • 2.Rb4#
    • 1...Bg2
      • 2.Rbxd3#
    • 1...exd5
      • 2.Qe5#
    • 1...e5
      • 2.Qxe5#
  • Tries
    • 1.Rexd3+?
      • 1...Ke5
        • 2.Sc4#
      • 1...Bxd3!
    • 1.Qd6?
      • threat
        • 2.Qe5#
      • 1...Rxd6
        • 2.c6#
      • 1...Bg3
        • 2.Rb4#
      • 1...f4
        • 2.Re4#
      • 1...e5
        • 2.Qxe5#
      • 1...Rb6!
  • Keys
    • 1.Rc3!
      • threat
        • 2.Rc4#
      • 1...Bxc3
        • 2.bxc3#
      • 1...exd5
        • 2.Qe5#
      • 1...Bg2
        • 2.Rcxd3#
      • 1...d2
        • 2.Sc2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 6
  • Sets
    • R(j);OGATE::B(J)+P(G)
    • B(a);N_GUARD::R(E)
    • B(a);OGATE,P_PINP(C)::P(C),XB(a)
    • B(a);N_GUARD::R(E),XB(a)
    • B(b);N_GUARD::R1(E),XP(c)
    • P(k);OGATE,XS(H)::QAB1(K)
    • P(k);OGATE::QAB1(K),XP(k)
  • Tries
    • Try
      • R(F);CHECK,XP(c)
      • Vars
        • K(e);N_GUARD,P_SPINP(k),S_CUTB(b),S_FLIGHT::S(D)
      • Refutation
        • B(b);XR(F)
    • Try
      • Q(K);
      • Threat
        • QAB1(K)
      • Vars
        • R(j);OGATE,XQ(K)::B(J)+P(G)
        • B(a);N_GUARD::R(E)
        • P(g);N_GUARD::R1(F)
        • P(k);::QAB1(K),XP(k)
      • Refutation
        • R(j);
  • Actual
    • R(E);
    • Threat
      • R1(E)
    • Vars
      • B(a);OGATE,P_PINP(C),XR(E)::P(C),XB(a)
      • P(k);OGATE,XS(H)::QAB1(K)
      • B(b);N_GUARD::R1(E),XP(c)
      • P(c);N_GUARD::S(D)
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