MESON Chess Problem Database

Problem Display
PID: 103170 (8/1p1r3b/Q2P1p2/1p4p1/2pPkNP1/3R2p1/BP2N2P/3KR3 w - - 0 1)

Markovtsy, Vassyl Yuriovich

3rd Prize, Mlynka-60 JT (Pat a Mat), 2004-2005

8/1p1r3b/Q2P1p2/1p4p1/2pPkNP1/3R2p1/BP2N2P/3KR3

#2

12 + 9

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rd8
      • 2.Qxb7#
    • 1...c3
      • 2.Bd5#
  • Tries
    • 1.Kd2?
      • threat
        • 2.Re3#
      • 1...cxd3
        • 2.Bd5#
      • 1...gxf4
        • 2.Sc3#
      • 1...c3+!
    • 1.Sg2?
      • threat
        • 2.Sef4#
      • 1...Kxd3
        • 2.Bb1#
      • 1...Kd5
        • 2.Sc3#
      • 1...cxd3!
    • 1.Sd5?
      • threat
        • 2.Sef4#
      • 1...Kxd3
        • 2.Bb1#
      • 1...Kxd5
        • 2.Sc3#
      • 1...cxd3!
    • 1.Bb1?
      • threat
        • 2.Ra3#
        • 2.Rb3#
        • 2.Rc3#
        • 2.Rxg3#
      • 1...gxh2
        • 2.Ra3#
        • 2.Rb3#
        • 2.Rc3#
        • 2.Rg3#
        • 2.Rh3#
      • 1...gxf4
        • 2.Sc3#
      • 1...g2
        • 2.Ra3#
        • 2.Rb3#
        • 2.Rc3#
        • 2.Rg3#
        • 2.Rh3#
      • 1...c3
        • 2.Rxc3#
      • 1...cxd3!
    • 1.Rxg3?
      • threat
        • 2.Bb1#
      • 1...c3
        • 2.Bd5#
      • 1...gxf4!
    • 1.Qxb5?
      • threat
        • 2.Qd5#
      • 1...cxd3
        • 2.Qxd3#
      • 1...gxf4
        • 2.Sc1#
      • 1...Bg8
        • 2.Qf5#
      • 1...Rxd6!
    • 1.Qa3?
      • threat
        • 2.Re3#
      • 1...cxd3
        • 2.Qxd3#
      • 1...c3
        • 2.Bd5#
      • 1...gxf4!
    • 1.hxg3?
      • threat
        • 2.Sc1#
        • 2.Sg1#
        • 2.Sc3#
      • 1...gxf4
        • 2.Sxf4#
      • 1...c3
        • 2.Sc1#
        • 2.Sg1#
        • 2.Sxc3#
        • 2.Bd5#
      • 1...cxd3!
  • Keys
    • 1.Se6!
      • threat
        • 2.S2f4#
      • 1...Kxd3
        • 2.Sc1#
      • 1...Kd5
        • 2.Sc3#
      • 1...cxd3
        • 2.Sg1#

This is a version of 103180

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • R(h);N_GUARD::QAB(K),XP(g)
    • P(b);OGATE::B(C)
  • Tries
    • Try
      • K(A);P-FLIGHT
      • Threat
        • R1(G)
      • Vars
        • P(b);OGATE,XR(G)::B(C)
        • P(e);SBLOCK,XS(I)::R(B)+S(E),DCHECK
      • Refutation
        • P(b);CHECK
    • Try
      • S(I);
      • Threat
        • R(B)+S(E)
      • Vars
        • K(c);OGATEB,S_FLIGHT,XR(G)::B(C)
        • K(c);P_SPINP(b),S_FLIGHT::S(E)
      • Refutation
        • P(b);XR(G)
    • Try
      • S(I);
      • Threat
        • R(B)+S(E)
      • Vars
        • K(c);OGATEB,S_FLIGHT,XR(G)::B(C)
        • K(c);P_SPINP(b),S_FLIGHT,XS(I)::S(E)
      • Refutation
        • P(b);XR(G)
    • Try
      • B(C);
      • Threat
        • DUALS(4)
      • Vars
        • P(e);SBLOCK,XS(I)::R(B)+S(E),DCHECK
        • P(b);::B(C)+R(G),XP(b)
      • Refutation
        • P(b);P_SPINP(b),XR(G)
    • Try
      • R(G);XP(a)
      • Threat
        • B(C)
      • Vars
        • P(b);OGATE::B(C)
      • Refutation
        • P(e);XS(I)
    • Try
      • Q(K);XP(d)
      • Threat
        • QAB1(K)
      • Vars
        • P(b);OGATE,XR(G)::QAB1(K),XP(b)
        • P(e);SBLOCK,XS(I)::R(B)+S(E)
        • B(i);N_GUARD::QAB1(K)
      • Refutation
        • R(h);XP(L)
    • Try
      • Q(K);
      • Threat
        • R1(G)
      • Vars
        • P(b);OGATE,XR(G)::QAB1(K),XP(b)
        • P(b);OGATE::B(C)
      • Refutation
        • P(e);XS(I)
    • Try
      • P(F);XP(a)
      • Threat
        • DUALS(3)
      • Vars
        • P(e);XS(I)::R(B)+S(E),XP(e)
      • Refutation
        • P(b);XR(G)
  • Actual
    • S(I);
    • Threat
      • R(B)+S(E)
    • Vars
      • K(c);S_FLIGHT,XR(G)::S(E)
      • K(c);P_SPINP(b),S_FLIGHT::S(E)
      • P(b);SBLOCK,XR(G)::R(B)+S(E)
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