MESON Chess Problem Database

Problem Display
PID: 244588 (2K1b3/1NR3B1/8/1P1k1B2/R1N3p1/1n2b3/2rr1p2/3n1Qq1 w - - 0 1)

Bunka, Vladislav

Sachove umeni (Ceskoslovensky sach), 2012

2K1b3/1NR3B1/8/1P1k1B2/R1N3p1/1n2b3/2rr1p2/3n1Qq1

#2

9 + 10

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Qh1
      • 2.Qxh1#
    • 1...Qg2
      • 2.Qxg2#
    • 1...Rxc4
      • 2.Qxc4#
    • 1...Rd4
      • 2.Sb6#
    • 1...Bf4
      • 2.Sb6#
    • 1...Bg5
      • 2.Sb6#
    • 1...Bb6
      • 2.Sxb6#
    • 1...Bh6
      • 2.Sb6#
    • 1...Bh5
      • 2.Rd7#
    • 1...Bg6
      • 2.Rd7#
    • 1...Bd7+
      • 2.Rxd7#
    • 1...Bf7
      • 2.Rd7#
    • 1...Sb2
      • 2.Sxe3#
    • 1...Sc3
      • 2.Sxe3#
    • 1...Sd4
      • 2.Sb6#
      • 2.Rc5#
    • 1...Sc5
      • 2.Sb6#
  • Tries
    • 1.Be6+?
      • 1...Ke4
        • 2.Sxd2#
      • 1...Kxe6!
    • 1.Rc5+?
      • 1...Sxc5
        • 2.Sb6#
      • 1...Bxc5!
    • 1.Qd3+?
      • 1...Bd4
        • 2.Sb6#
        • 2.Qe4#
      • 1...Sd4
        • 2.Sb6#
        • 2.Rc5#
        • 2.Qe4#
      • 1...Rxd3!
  • Keys
    • 1.Re7!
      • threat
        • 2.Be4#
      • 1...Rxc4+
        • 2.Qxc4#
      • 1...Bd7+
        • 2.Rxd7#
      • 1...Qh1
        • 2.Qxh1#
      • 1...Qg2
        • 2.Qxg2#
      • 1...Rd4
        • 2.Re5#
      • 1...Bg6
        • 2.Rd7#
      • 1...Sc3
        • 2.Sxe3#
      • 1...Sc5
        • 2.Sb6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 0
    • REMOVED MATES = 7
  • Sets
    • Q(b);OGATE::QAB(A),XQ(b)
    • Q(b);N_GUARD::QAB(A),XQ(b)
    • R(c);OGATE,P_PINR(G),XS(C)::QAB1(A),XR(c)
    • R(d);S_CUTB(g)::S(C)
    • B(g);N_GUARD::S(C)
    • B(g);N_GUARD::S(C),XB(g)
    • B(j);N_GUARD::R(G)
    • B(j);CHECK,N_GUARD::R(G),XB(j)
    • S(a);N_GUARD::S(C),XB(g)
    • S(f);S_CUTB(g)::S(C)
  • Tries
    • Try
      • B(E);CHECK
      • Vars
        • K(i);S_FLIGHT::R(B)+S(C),DCHECK,XR(d)
      • Refutation
        • K(i);S_FLIGHT,XB(E)
    • Try
      • R(G);CHECK
      • Vars
        • S(f);XR(G)::S(C)
      • Refutation
        • B(g);XR(G)
    • Try
      • Q(A);CHECK
      • Refutation
        • R(d);XQ(A)
  • Actual
    • R(G);P_SPINS(C)
    • Threat
      • B(E)
    • Vars
      • R(c);CHECK,OGATE,XS(C)::QAB1(A),XR(c)
      • B(j);CHECK,N_GUARD::R(G),XB(j)
      • Q(b);OGATE::QAB(A),XQ(b)
      • Q(b);N_GUARD::QAB(A),XQ(b)
      • R(d);SBLOCK::R1(G)
      • B(j);N_GUARD::R(G)
      • S(a);N_PINS(C)::S(C),XB(g)
      • S(f);N_PINS(C)::S(C)
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