MESON Chess Problem Database

Problem Display
PID: 272610 (8/B4Q2/4r1qp/5R1n/2rpk1P1/7p/1pbp1P1K/3RNB1N w - - 0 1)

Burda, Josef

Mosiashvili-75 JT (Kudesnik), 2023

8/B4Q2/4r1qp/5R1n/2rpk1P1/7p/1pbp1P1K/3RNB1N

#2

10 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Qxf5
      • 2.Qxf5#
    • 1...Qh7
      • 2.Qxe6#
    • 1...Qxg4
      • 2.Qxe6#
    • 1...Qg5
      • 2.Qxe6#
    • 1...Ra6
      • 2.Qd5#
    • 1...Rb6
      • 2.Qd5#
    • 1...Rc6
      • 2.Qd5#
    • 1...Rf6
      • 2.Qd5#
    • 1...Re7
      • 2.Qd5#
    • 1...Re8
      • 2.Qd5#
    • 1...Bxd1
      • 2.Bd3#
    • 1...Bb3
      • 2.Bd3#
    • 1...Bd3
      • 2.Bxd3#
    • 1...Ba4
      • 2.Bd3#
    • 1...Sg3
      • 2.Sxg3#
    • 1...Sf4
      • 2.Sg3#
    • 1...Sf6
      • 2.Sg3#
      • 2.Qxe6#
    • 1...Sg7
      • 2.Sg3#
    • 1...dxe1Q
      • 2.Rxe1#
    • 1...dxe1S
      • 2.Rxe1#
    • 1...dxe1B
      • 2.Rxe1#
    • 1...dxe1R
      • 2.Rxe1#
    • 1...d3
      • 2.f3#
  • Tries
    • 1.Sf3?
      • threat
        • 2.Sxd2#
      • 1...Qxf5
        • 2.Qxf5#
      • 1...Qg5
        • 2.Qxe6#
      • 1...b1S!
    • 1.Re5+?
      • 1...Rxe5
        • 2.Qf3#
      • 1...Kxe5!
  • Keys
    • 1.Rxd2!
      • threat
        • 2.Re2#
      • 1...Qxf5
        • 2.Qxf5#
      • 1...Qxg4
        • 2.Qxe6#
      • 1...Qg5
        • 2.Qxe6#
      • 1...Rc3
        • 2.Rxd4#
      • 1...Bd1
        • 2.Bd3#
      • 1...Bd3
        • 2.Bxd3#
      • 1...Sg3
        • 2.Sxg3#
      • 1...Sf4
        • 2.Sg3#
      • 1...d3
        • 2.f3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 14
  • Sets
    • Q(j);OGATE,XR(H)::QAB1(J),XQ(j)
    • Q(j);N_GUARD::QAR2(J),XR(i)
    • Q(j);N_GUARD,XP(G)::QAR2(J),XR(i)
    • R(i);OGATE::QAB1(J)
    • B(b);N_GUARD,XR(A)::B(C)
    • B(b);N_GUARD::B(C)
    • B(b);N_GUARD::B(C),XB(b)
    • S(h);N_GUARD::S(D),XS(h)
    • S(h);N_GUARD::S(D)
    • P(c);OGATE,XS(B)::R(A),XQ(c)
    • P(c);OGATE,XS(B)::R(A),XS(c)
    • P(c);OGATE,XS(B)::R(A),XB(c)
    • P(c);OGATE,XS(B)::R(A),XR(c)
    • P(f);::P(E)
  • Tries
    • Try
      • S(B);
      • Threat
        • S(B),XP(c)
      • Vars
        • Q(j);OGATE,XR(H)::QAB1(J),XQ(j)
        • Q(j);N_GUARD::QAR2(J),XR(i)
      • Refutation
        • P(a);
    • Try
      • R(H);CHECK
      • Vars
        • R(i);SBLOCK,XR(H)::QAB1(J)
      • Refutation
        • K(g);P-FLIGHT,XR(H)
  • Actual
    • R(A);XP(c)
    • Threat
      • R(A)
    • Vars
      • Q(j);OGATE,XR(H)::QAB1(J),XQ(j)
      • Q(j);N_GUARD,XP(G)::QAR2(J),XR(i)
      • Q(j);N_GUARD::QAR2(J),XR(i)
      • R(e);N_GUARD::R1(A),XP(f)
      • B(b);N_GUARD::B(C)
      • B(b);N_GUARD::B(C),XB(b)
      • S(h);N_GUARD::S(D),XS(h)
      • S(h);N_GUARD::S(D)
      • P(f);::P(E)
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