MESON Chess Problem Database

Problem Display
PID: 168983 (2B1R3/8/KppNN3/b1pkPp2/Q1p1pPpn/2R5/5n2/q4bB1 w - - 0 1)

Storozhenko, Ivan Ivanovich

SuperProblem, 2016

2B1R3/8/KppNN3/b1pkPp2/Q1p1pPpn/2R5/5n2/q4bB1

#2

10 + 13

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Bg2
      • 2.Qxc4#
    • 1...Bh3
      • 2.Qxc4#
    • 1...Sd1
      • 2.Sc7#
    • 1...Sh1
      • 2.Sc7#
    • 1...Sd3
      • 2.Sc7#
      • 2.Qxc4#
    • 1...Sh3
      • 2.Sc7#
  • Tries
    • 1.Sxc4?
      • threat
        • 2.Rd8#
      • 1...Bxc4+
        • 2.Qxc4#
      • 1...b5
        • 2.Se3#
      • 1...e3!
    • 1.Sb5?
      • threat
        • 2.Sbc7#
        • 2.Sec7#
        • 2.Rd8#
      • 1...cxb5
        • 2.Bb7#
      • 1...e3!
    • 1.Rd3+?
      • 1...Qd4
        • 2.Sc7#
        • 2.Qxc4#
      • 1...Sxd3
        • 2.Sc7#
        • 2.Qxc4#
      • 1...cxd3
        • 2.Sc7#
        • 2.Qc4#
      • 1...exd3
        • 2.Qxc4#
      • 1...Bxd3!
    • 1.Rxc4?
      • threat
        • 2.Sc7#
      • 1...Bxc4+
        • 2.Qxc4#
      • 1...b5
        • 2.Rxc5#
      • 1...Qxe5!
  • Keys
    • 1.Sxe4!
      • threat
        • 2.Sf6#
      • 1...Kxe4
        • 2.Qxc6#
      • 1...Sxe4
        • 2.Sc7#
      • 1...fxe4
        • 2.Rd8#

There are these versions: 200714

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 5
  • Sets
    • B(b);N_GUARD::QAB1(C),XP(d)
    • S(c);::S(H)
  • Tries
    • Try
      • S(G);P_SPINS(G),XP(d)
      • Threat
        • R(J)
      • Vars
        • B(b);CHECK,OGATE,XS(G)::QAB1(C),XB(b)
        • P(l);N_PINS(G)::S(G)
      • Refutation
        • P(e);
    • Try
      • S(G);
      • Threat
        • DUALS(3)
      • Vars
        • P(m);OGATEB,XS(G)::B(I)
      • Refutation
        • P(e);
    • Try
      • R(B);CHECK
      • Vars
        • P(e);XR(B)::QAB1(C),XP(d)
      • Refutation
        • B(b);XR(B)
    • Try
      • R(B);P_SPINR(B),XP(d)
      • Threat
        • S(H)
      • Vars
        • B(b);CHECK,OGATE,XR(B)::QAB1(C),XB(b)
        • P(l);N_PINR(B)::R1(B),XP(i)
      • Refutation
        • Q(a);XP(E)
  • Actual
    • S(G);XP(e)
    • Threat
      • S(G)
    • Vars
      • K(j);P_SPINP(d),S_FLIGHT,XS(G)::QAB(C),XP(m)
      • S(c);SBLOCK,XS(G)::S(H)
      • P(k);SBLOCK,XS(G)::R(J)
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